Disaster Restoration Archives - Page 2 of 3

Key Tools for Mold Remediation and Air Quality

While molds are an important part of the environment, its growth indoors can cause serious health problems. Unexpected events, like leaks from pipes and flooding from storms, can create standing water, which allows mold to grow in just 24 to 48 hours. Because of its fast spread, mold can be nearly impossible to prevent. That’s why it's important to focus on controlling its path—in the safest possible way.

Remediation specialists need the tools to not only keep themselves safe, but also the people in surrounding areas. With the proper protective equipment and the necessary tools, contractors are able to meet standards and safety regulations to effectively protect against infections and mold induced reactions.

Here are key tools remediation specialists will need to get the job done safely:

Personal Protective Equipment

Contractors rely on personal protective equipment (PPE), like respirators, gloves, and fitted goggles combined with high-efficiency particulate absorbing (HEPA) filters, cleaners, wet vacuums, and disinfectants to effectively and safely remediate mold.

Beyond PPE, contractors also need to take additional steps to contain harmful particulates and protect air quality. Taught by various organizations, like the IICRC, industry training and best practices often involve the following products: reusable containment barriers and negative air machines.

Reusable containment barriers

To protect others in and around the affected area, it’s important to isolate the contaminated area by closing off HVAC grills, sealing off cracks and crevices, and setting up containment barriers.

Traditional containment has been done by using poly sheeting and drywall with insulation. But, these materials are not reusable and are often disposed of at the end of the project. With the rising cost of construction-related materials and the huge labor shortages, companies are turning to reusable containment barriers, like our SHIELD WALL™ solution. It’s quick and easy to install and can be used over and over again.

By combining the containment walls with air filtration devices and a differential pressure monitor, remediation experts can create a negative pressure environment within the contained area for a complete containment solution.

Portable HEPA Filtration System

Portable air scrubbers—or negative air machines—are used in conjunction with containment to remove contaminated air from a sealed containment area through ductwork. The filtered air is exhausted outside of the contained area, creating negative air pressure inside.

There are several varieties of air filtration devices available on the market today, but it’s important to know which device is the most effective option. The best choices are units equipped with true HEPA filters. A true HEPA filter can capture 99.97% of 0.3-micron particulates, including mold spores, dust, and other allergens, and an even higher percentage of larger particles.

At Abatement Technologies, our PRED750 can be used alone or in conjunction with central air filtration to effectively remove harmful particles from the air. The portable air scrubber is equipped with a high-efficiency HEPA filter and is the most mobile HEPA filtration device in its class.

Want to learn more about Mold & Indoor Air Quality?

In our recent white paper “Mold & Indoor Air Quality: An Abatement Technologies White Paper,” we discuss:
1. How mold grows
2. The effects it can have on our health
3. Steps and standards for mold remediation
4. And the tools needed for the job

Download the white paper here.

4 FAQs About Temporary Containment Wall Systems

FAQ #1: What are temporary containment wall systems?

During construction projects, contractors can spend a lot of time and money building temporary containment walls to keep dust and harmful particulates from leaving the construction area. Like our solution, SHIELD WALL™, many temporary wall system panels are built on galvanized steel frames that provide extra durability for years of reuse. Unlike traditional drywall and poly sheeting methods, which are typically disposed of after each project, temporary wall systems help companies save money in as little as three uses depending on the scope of the project. But, it's not just reusability that makes temporary walls the best option for your project. Many walls on the market today provide additional protection like sound attenuation and fire ratings, but it's important to know what you really need to get the job done - Without over selling.

If you’re new to our blog and would like more information on SHIELD WALL™ for construction containment, click here.

FAQ #2: Do I Need a Fire Rated Containment Wall System?

No. Contrary to popular belief, a cumbersome, heavy and expensive fire-rated wall is not always necessary. According to the National Fire Protection Association’s 241 guidelines, a non fire-rated temporary containment solution is permitted when there is a working sprinkler system in place. However, if the sprinkler system is deactivated or affected in any way, a fire watch protocol should be established until it’s operational again. That being said, it's important to be aware of the fire resistance of the product you are using. For instance, SHIELD WALL is ASTM E-84, NFPA Class A & IBC Class A.

When making your decision on the right materials for the job it’s important to understand your local regulations and reach out to experienced suppliers for detailed information on temporary panel usage.

FAQ #3: Do temporary containment walls block sound?

Yes, many temporary containment walls have sound attenuating capabilities. In fact, in critical environments, such as healthcare facilities, construction noise can be intolerable and disruptful to patients. To help, hospitals are starting to rely on reusable containment walls to reduce noise in occupied adjacent areas so that renovation projects aren’t disruptful to patients, employees, and customers alike. After all, a loud environment can be distressing for patients and can prevent them from getting the rest that is necessary for recovery.

Additionally, in commercial spaces such as corporate offices, data centers, colleges and universities, airports and shopping centers, sound attenuation decreases disruptions, and allows for a “business as usual” atmosphere.. And as an added bonus, modular walls are more aesthetically pleasing than alternative solutions. With a professional, sleek appearance, modular wall systems give facilities the ability to conceal the construction area from occupied areas in a way that traditional methods often can’t support.

FAQ #4: What should I look for in a temporary wall provider?

It’s clear that modular wall containment systems have many advantages over traditional methods, such as drywall. Aside from providing sound attenuation and fire resistance capabilities, modular wall systems boast several benefits like cost effectiveness, ease of use, and sustainability. In order to find a solution best suited for your needs, it’s important to choose a solutions provider that can help you find the best financial route and provide guided buying expertise. By selecting a company that offers a consultative approach to sales, you can ensure that you’ll find a long-term solution to your short-term projects.

Looking for more? Check out Reusable Modular Walls Are Becoming The New Standard

Meet Aire Guardian Linda Armendariz

Meet the Aire Guardian: Linda Armendariz

In order to get a job done, especially in construction, purchasing your own equipment outright is not always the most cost-effective option. Every project requires different solutions, and contractors often benefit from renting equipment for the project’s duration. One obstacle in construction is effectively closing in an occupied space. Contractors and facility managers need a way to contain dust and prevent airborne particulates from affecting those in and around the construction area.

One very effective solution for containment is the Abatement Technologies, Inc. modular, reusable wall system. This is known in the industry as Shield-Wall. This system can be rented through a third-party company for single project use. In order to ensure rental companies are getting the best products to provide to their customers, it’s important to find a knowledgeable partner who can be available when you need them - this is Linda Armendariz and her team at Abatement Technologies.

Linda and her team are dedicated to assisting our rental companies in purchasing the right equipment for an array of projects. Linda came to Abatement Technologies with existing knowledge in the asbestos and remediation equipment industry, where she worked directly with the customers purchasing the equipment. This experience has positioned her to be able to easily identify customer needs and industry trends when working with rental companies.

Why Rent Equipment?

Contractors building their inventory typically work with two types of budgets: capital and rental. Typically, the capital budget is used for purchasing equipment outright.

The rental budget is utilized by the contractor when ongoing storage for said units is limited or not available as well as other reasons. This allows contractors to “try before they buy”, or spread out the monies used to purchase one item. Reasons like these are why Abatement Technologies partners with rental companies across the country. Currently, rental companies purchase products from Abatement Technologies for indoor air quality needs, including temporary containment of construction-related dust, air filtration, and drying equipment.

For some, renting equipment may be the best option as it can provide a work around for the lack of long term storage availability and assigning personnel to maintain equipment.

Why Should Rental Companies Work with Abatement Technologies?

Abatement Technologies’ customer service is what sets us apart from our competitors. Known for our consultative approach, at Abatement Technologies we pride ourselves on our staff being not just a resource but most importantly, an asset to our rental partners.

Our customer service doesn’t end once the sale is made. For example, the rental market team provides free virtual and in-person training to rental companies about Abatement Technologies’ products. Not only does this benefit them and their clients, but it also allows us to learn how we can continue best assisting our partners.

Abatement Technologies is already a triple threat in the industry. Our high-quality products, knowledgeable sales team, and dedication to customer service sets us apart from the competition and makes Abatement Technologies the preferred vendor for many rental companies.

Ready to learn more about Abatement Technologies? Contact us today!

Managing IAQ in Commercial Building During Wildfire Season

Managing IAQ in Commercial Building During Wildfire Season

Topic: 2023 Central Canada Wildfires

The 2023 wildfire season is here and has already had a devastating impact across central Canada. As hazy and dangerous fumes make their way south across the US border, most of the Northeast coast is experiencing serious air quality issues that are affecting millions of people. And, because smoke is made up of a complex mixture of gasses and fine particulate matter, it is highly inhalable and can cause respiratory and cardiovascular health effects.

But, when a smoke event occurs, it can take days to weeks for air quality to improve. If not properly addressed, smoke can get inside of buildings and negatively impact indoor air quality (IAQ). Building owners and facility managers need to know the best practices for reducing exposure to smoke inside offices, schools, and housing facilities.

Facts about IAQ

Outdoor air, including the fine particles from wildfire smoke, can enter a building in a few ways, including:

- Natural Ventilation: Open windows and doors

- Mechanical Ventilation: Bathroom fans, kitchen fans, and HVAC systems with fresh air intake

- Infiltration: Openings, joints, cracks

When smoke events occur, local and state health departments may issue air quality alerts notifications when specific actions are needed to protect the public. Building managers should use these notifications to know when to initiate mitigation measures in their smoke readiness plan, which should include these steps:

1. Evaluate the HVAC Systems

To minimize occupant exposures and health impacts from smoke during wildfire events, facilities should first address any issues with their existing HVAC systems. In buildings where the HVAC system uses air-handling units that bring outside air into buildings or recirculate indoor air, facility owners and managers should follow a planning framework, like the guidelines set by the American Society of Heating, Refrigerating, and Air Conditioning Engineers (ASHRAE). This includes:

- Performing maintenance on HVAC

- Upgrading filters

- Optimize system airflows

- Adding supplemental filtration

- Limiting areas for smoke intrusion

- Adding the ability to monitor particulate matter

- Assessing how to create cleaner air

2. Stock up on portable air scrubbers

Additionally, those in areas prone to fires may consider purchasing equipment to improve IAQ during the duration of a smoke event. Portable air scrubbers, like our PRED750, are self-contained air filtration devices that can be used alone or with central air filtration to effectively remove harmful particles from the air.The portable air scrubber should be equipped with a high-efficiency HEPA filter and be the right size for the room. It’s important to secure these crucial devices before a fire occurs in order to act quickly during a smoke event. In the event of emergencies, it’s important to find an air scrubber supplier that has the ability to ship orders as quickly as possible.

3. Choose the right filter

Some air scrubbers are compatible with activated carbon filters.These filters are available for all of Abatement Technologies’ HEPA-filtered equipment, including the PRED750 mentioned above. Activated carbon is a unique material that is often used to remove volatile organic compounds (VOCs), odor, and other pollutants from the air, making it the optimal solution for smoke filtration. The benefits of activated carbon filters include their ability to adsorb a variety of vapor contaminants, organic molecules (especially solvents), and chemicals, as well as their large capacity to catalytically destroy ozone, a major component of smog.

In addition to smoke, Abatement Technologies’ portable air scrubbers and carbon filters have been used to filter out a number of odors from buildings including chemicals, cleaning solvents, mildew, mold, and biohazards.

Want to learn more about how Abatement Technologies can help protect your building during wildfire smoke events? Get in touch with one of our Aire Guardian experts.

How to clean, decontaminate, and disassemble Abatement Technologies’ SHIELD WALL™

How to clean, decontaminate, and disassemble Abatement Technologies’ SHIELD WALL™

Our SHIELD WALL™ systems are designed for use in critical environments where pathogens are in no short supply. Therefore, when you’re done with a job using SHIELD WALL™, you’ll want to thoroughly disinfect them before storing and reusing them.

In this blog, we’ll walk you through the basic steps of decontaminating SHIELD WALL™.

What you’ll need:

- HEPA Vacuum

- Paper towels

- Water-based disinfectant

- Gloves

- Mask

- Bucket

- Diluted bleach

- Polyethylene sheet

- Modular containment wall transport cart

How often should you clean your SHIELD WALL™?

Cleaning the SHIELD WALL™ involves regular disinfecting while in use and decontamination before transportation.

While on the job site, you’ll want to regularly disinfect the surfaces with a hospital-approved disinfectant, as outlined in step two below. Different facilities will have unique cleaning schedules and requirements, so be sure to check with the facility you’re working in at the start of a project.

Second, you’ll want to decontaminate the walls anytime you’re transporting them to or from a new facility. In most cases, this is a two-step process. Ideally, you’ll begin the process while on the job site and finish the decontamination when back at your storage site. For this, you’ll follow all ten steps outlined below, as well as in the video.

The steps to clean SHIELD WALL™

Before transport from a job-site

Vacuum the interior and exterior of the walls from the top down with a certified HEPA vacuum
Wipe down all surfaces with a one-step surface cleaner and disinfectant that’s approved by the facility
Disassemble the modular containment walls
Place panels on an Abatement Technologies transport cart and secure them to prevent movement during transportation
Cover with a polyethylene sheet for transportation

Once back at the storage location

Raise panels to full height
Wipe down corners, sweep, frame, and extrusion
Submerge brackets and small hardware in a bucket of diluted bleach
Dry all parts
Place the panels and parts back on the transport cart, secure them, and cover them with a polyethylene sheet until it is time to use them again

Tips

Wear gloves: When working with bleach, even diluted bleach, wearing gloves is recommended to protect your skin.
Wear a mask: Between working with bleach and working in critical environments, it’s helpful to wear a mask during the decontamination process to keep yourself safe.
Check with the facility for any regulations regarding cleaning products and the cleaning schedule

Want to learn more about SHIELD WALL™?

If you’re new to modular containment walls and want to learn more about how they can help you on your next job, we’d love to help. You can check the product details here or set up a consultation with one of our experts today.

The Tools for Asbestos Abatement

The Tools for Asbestos Abatement

With federal and state laws in place, the use of asbestos in products and materials is restricted in the United States, but not banned. Canada, however, has regulations in place that prohibit the import, sale, and use of asbestos and products containing the dangerous carcinogen. However, this wasn’t always the case. Prior to its close in 1990, much of the world’s supply of vermiculite came from a mine in Montana. Unfortunately, the mine also contained a natural deposit of asbestos, which contaminated the vermiculite product. Materials like drywall, flooring, ceilings, cement, and insulation were produced using vermiculite from the mine, which was primarily sold as insulation in Canada under the trademarked name “zonolite.”

The risks of asbestos

But, what’s the risk of vermiculite containing asbestos? The inhalation of asbestos has been proven to cause lung cancer and other severe respiratory diseases. Because of this risk, the removal or disturbance of asbestos should be performed with the proper precautions and equipment. Proper sampling, testing, and removal procedures are essential to identify and safely mitigate the hazard associated with asbestos in buildings.

Experts and their techniques for asbestos removal

Asbestos testing requires expertise. This is not a DIY project. Professionals will come prepared with an air purifying respirator equipped with HEPA-filtered cartridges to wear during sampling, along with safety glasses. A respirator is recommended by both the U.S. EPA and Health Canada as best practice to reduce the amount of dust inhaled during collection.

Once asbestos has been tested and identified in a material, it’s important to begin the abatement process. The Ontario Regulation for Designated Substances (Reg. 278/05) classifies asbestos removal based on the severity of the risk - Type 1 (Low Risk), Type 2 (Medium Risk), and Type 3 (High Risk). When the risk is low, the size of the contaminated area is between 1 and 10 sq ft, and the material is non-friable asbestos-containing material (ACM), meaning it is being held together by a bonding agent. In a Type 2 abatement, the contaminated area is between 11 and 100 sq ft, and is friable ACM, meaning it is easily crumbled and breaks apart with touch. A Type 3 abatement operation means the contained area is over 100 sq ft and contains both friable and non-friable ACM. A Type 3 operation, involves the removal or disturbance of more than one square meter of friable ACM during the repair, alternation, maintenance or demolition of a building.

Tools of the trade

Type 2 and Type 3 abatement require professionals to wear the proper respirator as well as PPE equipment like disposable coveralls to prevent entry of dust. A trained professional will not only know the measures to protect themselves, but others around them. These measures include the isolation of the entire area using temporary containment barriers like Abatement Technologies SHIELD WALL™.

Additionally, during these types of abatement, it's important to use a HEPA filtered vacuum extraction system, like our HEPA vacuums to clean up asbestos dust throughout the project, avoiding particulates and carcinogens being left behind after a project. A vacuum extraction system offers the benefit of adding an engineering control of increased negative draw of air at the point of disturbance. This decreases the exposure to the worker as opposed to other methods which may increase the airborne concentration within the asbestos work area.

Want to learn more about the solutions we have available for asbestos abatement professionals? Click here.

The Basics of Respirator Fit Testing

In this blog, we break down when you should fit test respirators, the difference between qualitative and quantitative fit testing, as well as how to choose which test is right for your respirator.

No matter how advanced a face respirator is, if it doesn’t fit right, it won’t protect the wearer. That’s why fit testing is essential.

In the US, the Occupational Safety and Health Administration (OSHA) requires fit testing before using a mandatory respirator for the first time and annually after that. The rules are similar in Canada. According to the Canadian Standards Association (CSA) and Ontario’s Occupational Health and Safety Act (OHSA), workers whose jobs require them to wear a respirator must complete fit testing before their first use.

Additionally, they must complete a fit test:

- At least every two years, according to the CSA (Z94.9.1.6)

- After significant weight gain or loss, surgery, major dental work, or other physical changes that could affect a respirator’s fit

- When changing to a new respirator make or model

Qualitative vs. Quantitative fit testing

There are two types of fit testing: qualitative and quantitative. Qualitative fit testing is a subjective test that relies on the wearer's sense of taste or smell to determine if the respirator fits properly. This type of testing is a simple pass-or-fail method that does not measure the extent of leakage. OSHA accepts four methods for qualitative fit testing: isoamyl acetate (banana oil test), saccharin, Bitrex, and irritant smoke.

Quantitative fit testing, on the other hand, is a more objective and precise method of testing the fit of a respirator. This type of testing uses specialized equipment to measure the amount of leakage around the respirator's seal. Quantitative fit testing requires a controlled environment and trained personnel to administer the test. The three OSHA-accepted methods for quantitative fit testing are generated aerosol, ambient aerosol, and controlled negative pressure.

Should you use qualitative or quantitative fit testing?

Wondering which method of fit testing is best? The quick answer is: it depends.

Qualitative fit testing may be used for negative pressure respirators, such as N95 masks if they are being used in environments less than 10 times the permissible exposure limit (PEL). If contractors are using negative pressure respirators in environments above 10 times the PEL, they must use qualitative fit testing.

For positive pressure respirators, either qualitative or quantitative testing will work. That is because positive pressure respirators supply their own air, and thus can overcome minor leaks.

How to conduct qualitative fit testing

To perform qualitative fit testing, the wearer must put the respirator on and adjust it to fit their face. The test administrator will then instruct the wearer to perform a series of exercises, such as talking, nodding, and moving their head from side to side, simulating normal workplace movements.

During the test, the administrator will introduce an irritant to the environment, such as banana oil, Bitrex, saccharin, or smoke, and ask the wearer to indicate if they can taste or smell the test agent. The test administrator will also visually inspect the respirator for any leaks or gaps. If the wearer can taste or smell the test agent, or if there are visible leaks, the respirator does not fit properly and should be adjusted or replaced.

Qualitative fit testing is a simple and cost-effective way to determine if a respirator fits properly. However, it is not as precise as quantitative fit testing is more precise and may not detect all leaks or fit issues.

How to perform quantitative fit testing

To perform quantitative fit testing, the wearer must properly put on the respirator and adjust it to fit their face. The test administrator will then use specialized equipment to measure leakage around the respirator's seal.

The equipment used for quantitative fit testing typically includes a probe placed against the wearer's face near the respirator's seal. The probe is attached to a special filter adapter, which then passes through the respirator to sample the air inside of the mask... As in qualitative testing, the wearer will be instructed to perform a series of exercises, such as talking, nodding, and moving their head from side to side to simulate workplace movements.

The test results are then compared to the manufacturer's fit factor, which measures the respirator's effectiveness. If the fit factor is within the acceptable range, the respirator fits properly. If the fit factor is outside of the acceptable range, the respirator does not fit properly and should be adjusted or replaced.

Quantitative fit testing is a more precise and accurate method of testing the fit of a respirator. However, it requires specialized equipment and trained personnel to administer the test. It is recommended that quantitative fit testing be performed whenever a new respirator is used, or when there are changes to the wearer's facial structure.

Get the most out of your respirator

Whether it’s qualitative or quantitative fit testing that you need, be sure to stay up to date with fit testing requirements for your respirator. Doing so not only ensures compliance but will help you stay safe amid a variety of work environments.

Find our respirators here.

Winterization checklist: How to prepare your building for winter

Winterization checklist: How to prepare your building for winter

Avoid property damage with these quick tips

Winters in Canada and the northern U.S. are notoriously harsh. Each year, piled-up snow and ice damages roofs, and frozen pipes burst to wreak havoc on structures of all shapes and sizes. While winter storms are outside your control, preparing for them is not.

Here are some quick tips to prepare your building for winter.

Prevent Plumbing and Pipe Problems

One of the main threats that cold weather poses to buildings is frozen pipes. When pipes freeze, they burst, and the ensuing water damage can lead to mold growth, structural damage, and significant repair costs. Here’s what you can do to prepare:

Keep inside temperature above 55F/12C to prevent freezing
Check pipes for any air leaks
If pipes are in non-insulated or non-heated areas, consider wrapping pipes in insulation to prevent freezing

Additionally, it’s best to expect the unexpected and prepare for the worst. In this case, that means having equipment on hand to handle flooding. When a pipe bursts and water spills into your building, the clock immediately begins ticking. Mold can form in just 24-72 hours. If you don’t have equipment on hand, you’ll be asking how to get rid of mold rather than how to prevent it.

Here are some items you’ll want to have around in the case of a burst pipe:

Air movers, such as the RAPTOR® RAM1000 Centrifugal Air Mover
Dehumidifiers, such as the AQUATRAP® AT150RS LGR Dehumidifier

When flooding occurs, use air movers to dry the building and dehumidifiers to capture and remove the moisture in the air.

Secure your Structure

Though snow may look light and fluffy when it’s falling, anyone who has shoveled snow knows that fluffy snowflakes accumulate into dense snow packs. While snow piling on your driveway may be little more than an annual inconvenience, snow piling on roofs can cause severe structural damage.

The most dramatic example of structural damage from snow is roofs caving in. But this isn’t the only, or the most common, way that snow and ice on roofs can cause damage. The more common threat to structures from snow buildup is water damage. Snowmelt on roofs can leak into attics and cause mold growth. This can happen when shingles are missing or broken on the roofs, allowing water to seep through.

Additionally, ice dams forming around gutters are a major concern. Like caved-in roofs, falling icicles causing serious injury or death to passersby are a dramatic example. More commonly, these icicles grow in size and weight, putting strain on gutters and causing them to break. When this happens, the falling gutters and ice can damage the rest of your structure and make exposed portions of the structure liable to water damage.

Here’s what you can do to protect your roof from snow and ice:

Clean the gutters, removing any leaves, debris, snow, or ice
Inspect the roof, looking for missing or broken shingles
Install heated cabling to warm your roof and prevent snow buildup

Have your HVAC’s Back

Your HVAC system has your back all year, keeping you cool in the summer and cozy in the winter. The least you can do is ensure it’s set up for success going into winter. As you put more strain on your HVAC system to heat your building throughout the cold winter months, here are a few things you can do to have its back:

Change the filters
Empty condensation traps
Inspect the system for any blockages

Win with Winterization

At times, winter can feel like a primal battle between you and the elements. You never know what winter will throw at you, but by preparing for the worst, you set yourself up for success no matter what winter holds. This winter, be ready for anything with Abatement Technologies equipment at your disposal and win the battle against winter.

5 Years Later – How Abatement Technologies Aided Hurricane Maria

September is historically the time of year with the most optimal conditions for the formation of hurricanes in the mid-Atlantic region. Because of the high amounts of humidity and warm air in the Caribbean, its geographical location houses the perfect conditions for catastrophic hurricanes. In fact, this year marks the fifth anniversary of Hurricane Maria, the deadly Category 5 hurricane that devastated the northeastern Caribbean in September 2017.

As a result of Hurricane Maria, the island of Puerto Rico lost most of its essential services’ infrastructure, communities were leveled, many were displaced, and thousands of lives were lost. Five years after the disaster, the reconstruction and restoration efforts on the island are still ongoing. Following the immediate devastation in 2017, Abatement Technologies customer and restoration expert, Pat Dooley, was contracted to fly to San Juan, Puerto Rico, to do an assessment of the flood damage in the Mall of San Juan, a 1,580,000 square-foot shopping mall that first opened its doors in 2015. Upon initial assessment, Pat and his team discovered that nearly 18 inches of water had flooded the mall.

As a result of the hurricane, there were travel and equipment delays that prohibited Pat and his team from arriving in Puerto Rico until 14 days after the hurricane had already passed. Because mold incubates from a spore for 12 to 24 hours, and starts showing visual signs of growth in 48 to 72 hours, the team was challenged upon arrival with remediating severe mold growth. When remediating mold, it’s important to remove every spore to prevent regrowth. Because of this, workers had to cut and remove drywall and other materials, which lead to dust and other potentially harmful particles in the air.

In order to safely contain the mold, Pat and his team decided to bring in 100 of Abatement Technologies’ air filtration devices. These devices were situated throughout the mall to help remove any harmful particulates, bioaerosols and volatile organic compounds that were released into the air during the project. By leveraging this equipment, the team was able to help protect the short and long-term health of those involved and helped ensure that they were breathing the cleanest air possible.

As a remediation and restoration expert, Pat is an IICRC Instructor and is the founder of what is known today as the Applied Structural Drying Course. Leveraging his education and experiences, like the project in Puerto Rico, Pat has carried out water restoration projects with a total value of nearly $14.7 million and has participated in numerous natural disaster restoration projects. With a passion for helping and protecting people, Abatement Technologies is proud to work with remediation and restoration experts, like Pat, to deliver the best solutions available in the market.

Contact our team today to learn more about our air filtration devices and other restoration and remediation products!

The Top 4 Considerations When Evaluating Portable Air Scrubbers

Airflow ratings can be very misleading: The cheapest units are often the most costly

When purchasing portable air scrubbers for use on restoration and/or mold remediation projects, there are many factors that should be considered in selecting the proper piece of equipment. Too many times airflow (or claimed airflow) and price are the only issues considered before a purchase. All too often the contractor finds that the equipment does not meet their expectations or needs when it arrives.

1. Ease of transport

This is one of the most important, yet most overlooked, aspects of portable air scrubbers. Scrubbers must constantly be moved from job to job and from location to location during a project. Some units are designed for one-person operation; others may require two people to move. Weight is very important, but so is weight distribution. Scrubbers that include a transport system for easy movement by one operator are safer and more cost-effective to operate. A stair climber is also a valuable feature when stairs are a factor. Size and weight should also be considered when thinking about transport and vehicle requirements.

2. Air scrubber filtration system

The filtration system is the heart of a portable air scrubber. Poorly designed filtration can add hundreds or even thousands of dollars in annual operating costs. Filters must provide a substantial dirt-holding capacity and long filter life without significant airflow loss. A well-designed filtration system requires three stages of filters to progressively filter all particle sizes. If odors and particulates are to be removed simultaneously, a fourth stage of gas/odor filtration may also be needed.

Easy “no tools” access is important when inspecting and replacing dirty filters. The filter module should not have to be removed to change or inspect filters. This is time consuming and can also cause debris to be spilled onto the HEPA and the surrounding area.

HEPA filters must be individually tested by the filter manufacturer and certified to a minimum efficiency of 99.97% at 0.3 microns. It is not enough to simply assemble a filter using HEPA media. A true HEPA filter must be constructed to the exact manufacturing practices necessary to ensure that the finished filter does not leak through the filter media or around the frame or seams. If debris can bypass the HEPA media, the filter will not pass DOP testing required in many abatement specifications. Insist that the HEPA filter itself be certified to HEPA standards, with a certification label affixed to the frame of the HEPA filter.

3. Blower type

Air scrubbers are required to trap large quantities of debris. Debris buildup on the filters hinders the airflow and causes what is technically known as static resistance. Specific blowers are much better suited than others for overcoming this resistance. There are many types of air moving blowers available, each with specific characteristics for certain applications.

For example, forward-inclined “squirrel cage” blowers are designed to move large volumes of relatively clean air and low static resistance. These inexpensive blowers may be suitable for applications such as use in a furnace or even in an asbestos negative air machine; they are not, however, a very good selection for use in an air scrubber.

Backward-inclined or airfoil type blowers are a much better choice since they are engineered with the capacity to overcome the pressure drop of dirty filters. The use of this type of blower will not only increase filter life but will also produce higher airflow as the filters begin to accumulate debris. This generally means significantly better performance (airflow) over the life of the filters and much lower replacement filter expenses than a scrubber or negative air machine that is equipped with a forward inclined blower with a comparable peak airflow rating.

4. Materials and construction methods

Most negative air machines position the blower at the outlet of the cabinet, and pull air through the cabinet. This keeps the entire cabinet – including the section downstream from the HEPA filter - under lower (negative) pressure compared to the air in the surrounding area. With this design, the machine must be perfectly sealed to prevent contaminated air from being sucked into the cabinet and exhausted without ever passing through the HEPA.

This is a big concern when the unit is used as a negative air machine and exhausts air into another part of the facility, especially if that area is occupied. Any such leaks will negate the effectiveness of the HEPA filter and will more than likely cause contamination of the area and failure of any air testing required by the job specification. This should be an important liability concern of any mold abatement contractor.

Generally, the use of gaskets and solid rivets produce the most leak free cabinets. Beware of any cabinet that uses fasteners such as hollow pop rivets, or threaded fasteners such as sheet metal screws or nuts and bolts. These devices do not afford the airtight seal necessary to keep small particles from infiltrating a negative pressure cabinet.

Fun fact: It has been found that sub-micron particles can actually travel along the threads of a screw or bolt!

Lastly, make certain that any hardware, instruments, or transport system components that penetrate into the cabinet are sealed in such a way as to prevent any leakage or bypass. For more information on evaluating portable air scrubbers contact us!

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Category: Disaster Restoration