Mastering Differential Air Pressure Containment

Why Differential Air Pressure Containment Matters

Effective Contaminant Control

AIRWALL® systems excel in environments where air purity is paramount. By maintaining differential air pressure, these systems ensure that pollutants, pathogens, and particles cannot migrate from contaminated zones to clean areas, crucial in settings such as hospitals, pharmaceutical manufacturing, and laboratories.

Customizable Air Pressure Settings

Each AIRWALL® unit can be tailored to a project or facility’s specific needs, allowing for precise control over air pressure differentials. This customization is key in applications ranging from infection control in medical settings to dust containment in construction sites.

Integrated Filtration Systems

Equipped with high-efficiency particulate air (HEPA) filters, AIRWALL® systems can effectively remove up to 99.97% of particles, ensuring that only clean, filtered air is circulated within the controlled space. This feature is essential for maintaining strict cleanliness and contamination standards.

Rapid Deployment and Scalability

The modular design of AIRWALL® systems allows for quick setup and reconfiguration, making it easy to scale up or down based on the specific requirements of a site. This flexibility is invaluable in emergency situations or when adapting to changing conditions on the ground.

Durability and Reusability

Built to last, AIRWALL® systems can be used repeatedly, offering a long-term containment solution that is both cost-effective and reliable. This durability is especially important in industries where environmental control systems are in constant use.

AIRWALL® Differential Air Pressure Containment Products

Modular and malleable inflatable five-chamber AirWall.
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Universal Dust Curtain
Modular and malleable curtain with access door.
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Modular and malleable inflatable door wall with vents.
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Decon Chamber
Modular and malleable chamber with access door.
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AIRWALL® Flex Seal
The AirWall Flex Seal is a highly effective barrier that does one job and one job only, it seals the wall cavities when a flood cut has been performed.
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AIRWALL® Xhaust 1
Malleable inflatable window AirWall with intake and exhaust ports.
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Airwall Xhaust 2
Malleable inflatable doorway AirWall with intake and exhaust ports.
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Malleable inflatable attic or crawlspace air circulation AirWall with custom directional intake and exhaust ports as well as heat injection ports.
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AIRWALL® Differential Air Pressure Containment Videos


AIRWALS are made from a polyester fabric with a polyurethane coating. This combination is easily vacuumed, wet wiped, machine washed and/or disinfected with common antimicrobial solutions.

We used the best materials we could find knowing full well that the crews that handle these tools will handle them roughly. The zippers are oversized and made by YKK, every one of our products that comes into contact with the floors of the built environment with a durable bonded vinyl foot for long life. The parts that come into contact with the walls and ceilings are replaceable if they happen to wear out and everything is machine washable. As a company focused on having a positive impact on the environment we deliberately did not build them with obsolescence in mind, quite the opposite, durability and future/reverse compatibility are inherent in all of our designs.

Toggle ContentFor the AIRWALL X and Xpress as well as the Blox and Xhausts, the answer is yes. These products use the air from your air movers and HEPA machines to function. In regards to the NEXUS however, the answer is a resounding no. The dust curtain and doffing chambers rely on the steady support of the NEXUS’ and an internal frame respectively, so they also operate independently of a constant air supply which means that they are immune from power failure and can perform reliably for as long as needed on one fill up from a high volume air pump or any standard wet/dry vac.

If it is a constant air flow product like X and Xpress then holes are basically irrelevant. In fact the constant air flow products have large holes designed into them so that they can be used like a manifold. If a repair is required the user simply cuts an appropriately sized, glueless, instant set patch and places it on the backside of the hole, cut or tear.

Damaged bladders are actually quite rare but very simple to repair/replace and can be done while the containment is in place so that there is no down time or breach of containment. The user cuts an appropriate size glueless, instant set patch and places it over the damaged area or replaces the bladder with a new or undamaged unit and installs the functional bladder per instructions.

Absolutely yes! The high quality YKK zippers and snaps are designed to be compatible with each other now and many years from now. A user can connect multiple Xpresses, end to end, top to bottom or even bottom to bottom. The NEXUS is daisy chainable with the same zippers that allow a user to connect the edge seals or integrate a dust curtain for ingress and egress. So you can create 100 feet of barrier, a cube, a tube or any shape that suits the environment with or without one or more points of entry.

All NEXUS and the dust curtain are designed to be used in rooms with ceilings up to 10 feet high. A user only needs to attach 1 or 2 12 inch extensions depending on the need. Additionally, if a room has an irregular height, often due to t-bar drop ceilings or very old construction, a t-bar kit can be purchased that includes the straps needed to achieve any height between 8 feet and 10 and can even accommodate shallow to moderate slopes.

No. This would be a situation when plastic only or a hybrid use of AIRWALLS and plastic would come into play.

We do not currently have a line item in Xactimate but we will with time and increased adoption in the industry. This is, in fact, a unique time for the early adopters out there because they will have the rare opportunity to help dictate what the compensation will be for this type of containment. The people at Xactimate check with current users to determine what the per diem or flat rate might be. You will get paid by billing for containment as you normally would but many users justify higher rates of compensation by providing superior protection and reliability as well as the added benefit of sound abatement.

Yes. AIRWALLS outperform plastic containment by 200-400% and yes, they do this without any physical attachment to the building. They rely on air pressure, compression and friction to maintain that high level of performance.

Yes. The AIRWALL X is a constant air supply barrier designed specifically for doorways 28” to 36” wide. It uses the discharge of an air mover or NAM to first fill itself and the door opening and then redistribute the air as a manifold, send it out of the room to maintain negative pressure or hold the air for a static barrier. Beyond the X we also have the AIRWALL Airlox kit which makes it possible to create a large (11.5-15 square feet) or small (9-7 square feet) decon/doffing chamber using two NEXUS walls. The Airlox also fits in standard doorways 28-36” wide.

No. Tape is compatible with our product should the user need to integrate plastic into the containment for a hybrid set up and poles can sometimes be used to assist in set up or to further reinforce a span but generally speaking tape and poles are completely unnecessary. AIRWALLS without poles outperform the best forms of containment, including poles and compression timber stud walls by 200-400% so any use of poles is very much discretionary and tape is simply not needed unless the situation requires some use of plastic.

It depends on what services you provide. For mold remediation we recommend at least a basic mold kit which includes two NEXUS walls, a dust curtain and a doffing chamber along with some edge seals and extensions for higher ceilings. You may also choose to add one or two additional NEXUS to manage slightly larger jobs. For chamber drying we recommend the same minus the doffing chamber. If you do a lot of crawl spaces, especially in colder climates, we recommend at least two Xpress and one Blox. If you do odor control or small mold jobs then we recommend an AIRWALL X. For simple air exhaust out of a window we recommend that you pick up an Xhaust 1 and 2 for maximum adaptability.

Differential Air Pressure Containment