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HEPA Negative Air Machines
Negative air machines with true HEPA final filtration for hazardous material abatement and remediation. Four-stage systems capture asbestos fibers, mold spores, and lead dust. Used by licensed abatement contractors during asbestos, lead paint, and mold remediation projects.
Abatement Technologies H2KM Negative Air Machine – 2000 CFM, 3-Stage HEPA
Abatement TechnologiesAbatement Technologies HEPA-AIRE H2KM — 2,000 CFM Negative Air Machine and Air Scrubber The Abatement Technologies HEPA-AIRE H2KM is an industrial-...
View full detailsAbatement Technologies BD2KM Negative Air Machine – 2000 CFM, 2-Speed, HEPA
Abatement TechnologiesBD2KM Negative Air Machine — Roto-Molded 2,000 CFM HEPA, 2-Speed Motor The Abatement BULLDOG BD2KM is the two-speed version of the BULLDOG series ...
View full detailsAbatement Technologies H2KMA Deluxe Negative Air Machine – 2000 CFM, 1 HP HEPA
Abatement TechnologiesH2KMA Deluxe Negative Air Machine — 2,000 CFM HEPA for Large Containment Zones The Abatement Technologies HEPA-AIRE H2KMA Deluxe is the high-capac...
View full detailsAerospace America 9100 Turbo Negative Air Machine – 2500 CFM, 1.75 HP, 116 lbs, SKU 9100
Aerospace AmericaAerospace America 9100 Turbo Negative Air Machine — 2500 CFM, 1.75 HP The Aerospace America 9100 Turbo is the highest-output unit in the Aeroclean ...
View full detailsNovatek Novair 1000 Standard Filter Negative Air Machine – F1205, 220V CE
NovatekCE-Certified 220V General-Purpose Negative Air MachineThe Novatek Novair 1000 (F1205) is the CE-certified 220V variant of the F1005, providing 1000...
View full detailsNovatek Novair 1000 Negative Air Machine – F1005, 1000 CFM, Standard Filter
NovatekGeneral-Purpose 1000 CFM Negative Air Machine for Construction and RenovationThe Novatek Novair 1000 (F1005) delivers the same 1 HP, 1000/500 CFM t...
View full detailsNovatek Novair 1000 Negative Air Machine – F1000, 1000 CFM, 1 HP, HEPA
Novatek1000 CFM Negative Air Machine for Abatement and Hazmat ContainmentThe Novatek Novair 1000 (F1000) delivers true 1000 CFM airflow with all filters i...
View full detailsAbatement Technologies BD2KMA Deluxe Negative Air Machine – 2000 CFM, HEPA
Abatement TechnologiesBD2KMA Deluxe Negative Air Machine — Roto-Molded 2,000 CFM HEPA for Harsh Job Sites The Abatement BULLDOG BD2KMA Deluxe is the variable-speed vers...
View full detailsAbatement Technologies H1990M Negative Air Machine – 1600 CFM, 1 HP, HEPA
Abatement TechnologiesH1990M Negative Air Machine — 1,600 CFM HEPA Containment in a 125-Pound Portable Unit The Abatement Technologies HEPA-AIRE H1990M is a dual-speed ...
View full detailsHEPA Negative Air Machines for Hazardous Material Abatement
What Makes a Negative Air Machine "HEPA"
HEPA stands for High Efficiency Particulate Air — a filtration standard requiring 99.97% capture efficiency for particles 0.3 microns in diameter, the most penetrating particle size for fibrous filters. Asbestos fibers, the primary hazard in abatement work, range from 0.1 to 10+ microns; the thin, respirable fibers under 3 microns that cause mesothelioma and asbestosis are well within the HEPA capture range. A HEPA-certified negative air machine exhausts air that has passed through a true HEPA final filter — meaning the air leaving the machine and entering the building exterior is effectively free of asbestos fibers, lead dust particles, and mold spores at concentrations that pose a health risk. Non-HEPA machines with standard filters allow these particles to pass through the exhaust.
HEPA Negative Air Machines vs. Standard Air Scrubbers
Negative air machines and air scrubbers both use HEPA filtration, but they perform different functions in an abatement project. Negative air machines exhaust filtered air to the outside of the containment, creating negative pressure — air flows in through gaps in the poly containment rather than out, preventing fiber migration to adjacent spaces. Air scrubbers recirculate room air through the filter without exhausting outside, reducing airborne particle concentrations but not creating negative pressure. For Class I asbestos work and most regulated abatement requiring negative pressure containment, HEPA negative air machines are the required equipment; air scrubbers are used in addition for general air quality control or in scenarios where negative pressure is not required by the abatement specification.
Related collections: negative air machines, air scrubbers, Abatement Technologies, asbestos removal equipment, flood and dust management
Sizing HEPA Negative Air Machines for Your Containment
EPA and OSHA guidelines for asbestos abatement require a minimum of four air changes per hour inside the containment, with some specifications requiring six or more for high-fiber-generation tasks. To calculate required CFM: multiply the containment volume in cubic feet by the required air changes per hour, then divide by 60 to get the required CFM. A 10,000 cubic foot containment at four air changes per hour requires 667 CFM minimum — achievable with a single 1,000 CFM machine with headroom for duct losses and filter loading. Use multiple machines for larger containments or when redundancy is required; a single machine failure must not shut down the abatement project entirely on occupied building jobs.
Frequently Asked Questions
What is a HEPA negative air machine?
Is a negative air machine necessary for mold remediation?
Where should I vent a negative air machine?
How many negative air machines do I need?
What are the negative side effects of HEPA air purifiers used during abatement?
Let customers speak for us
from 93 reviewsGreat product
This vacuum is very light and powerful
Gets the job done without hassle. This vacuum is powerful and reliable for everyday cleaning. Definitely recommend it.
we have three cats, and this purifier has done wonders in removing pet odors and dander
Located in the Twin Cities in Minnesota, we acquired our Brio Air Filter in mid-late Spring of this year (2023) when pollen count was high and we were beginning to experience the effects of Poor Air Quality Index as a result of smoke particulates from fires in Canada that caused the air in much of Minnesota to become hazy and simply dirty.
It is so easy to share our experience with the Brio Air Filter given how quickly and efficiently it removed pollen, dust, and smoke particles from the environment inside our home. Two people in our home who suffer from pollen-related allergies during the spring immediately experienced easier breathing and elimination of symptoms within the house. With respect to smoke particulates from Canada drifting into our environment, EVERYONE in our home experienced directly improved breathing and smell of the air when entering from outside.
An additional piece of information to account for is that we have always employed high grade furnace filters in our home’s central HVAC system. With that high grade filtration in place both prior to and after acquiring a Brio home air filter, we all quickly agreed that deploying the Brio in our home made an easily noticeable positive difference in breathing inside our home. Additionally, those of us who clean our home have observed that dust builds up slower on our floors and furniture than before we deployed the Brio unit.
We did note that the Brio is not as quiet as a few other brands/models on the market that we have tried in our home but the efficiency and quality of the filtration, along with the air turnover rate it provides,allows us to locate the Brio unit in central rooms away from the bedrooms. Since we made that change there has been no noise-related effect on our sleep, while the unit maintains the same level of air cleanliness throughout our home.
A last key point to make is how easy the Brio unit is to maintain. The simplicity of the modular construction of the Brio unit makes it very quick and easy to keep the filtration sections clean. We have not yet reached a point of filter replacement but it is obvious to us that the replacement will take a matter of seconds and can be executed by anyone in our home, including our 10-year-old son.
this bedroom purifier has transformed my sleep quality. the air is so much fresher and cleaner worth every penny
very customer friendly and professional design.
perfect for maneuvering in tight areas the HEPA filter is a huge bonus
It seems to help reduce my allergy issues. We're glad we bought it. The only problem I had was not seeing any cubic footage recommendations in the online description when purchasing the unit. Bedrooms vary widely in size!!
This vacuum has exceeded my expectations. It's super powerful and handles daily cleaning with ease. I recommend it to everyone.
really effective in sweeping up all kinds of debris from our warehouse floor
works wonders on tough carpet stains. it's compact and easy to use for upholstery cleaning too
this wide area vacuum covers large spaces quickly it’s a huge time saver for our warehouse cleaning
Covers a large area quickly, and the bag is easy to replace. Great for busy offices