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Air Scrubber Filters

Replacement HEPA, carbon, and pre-filters for air scrubbers and negative air machines. Genuine Aerospace America and Abatement Technologies stages, matched by series and frame size.

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Air Scrubber Filters for HEPA Negative Air Machines

Air scrubber filters here are genuine replacement stages for HEPA negative air machines from Aerospace America and Abatement Technologies, sized to fit the units restoration crews already run. A negative air machine is only as clean as its filter stack, so a clogged pre-filter or a HEPA past its hours quietly drops airflow and lets particulate through. Match the stage and the frame size to your machine and the unit pulls full CFM again.

Which Filter Stage Do You Need: Pre, Carbon, or HEPA?

Most air scrubbers run three stages and each does a different job. The pre-filter catches the big debris and protects everything behind it, so it gets changed most often and costs the least. A carbon or charcoal stage handles odor and gas-phase contaminants on smoke and sewage jobs. The HEPA is the final stage that captures 99.97 percent of particles at 0.3 microns, and it lasts longest but costs the most. Buy pre-filters by the case since you go through them fast.

How Do You Match a Replacement Filter to Your Air Scrubber?

Go by the machine series and the frame dimensions, not just the word HEPA. An Aerospace 2000 CFM unit takes a 24x24x12 HEPA, the 1800 series takes 16x24x12, and the 600 MAG takes a 16x16x6, so a filter that fits one will not seat in another. Abatement HEPA-AIRE and Predator machines use their own Final Stage cartridges keyed to the model. Check the number printed on the old filter frame and order the same one.

Related: Air Scrubbers · Restoration Equipment · HEPA Vacuums

When Should You Replace an Air Scrubber HEPA Filter?

Change the pre-filter every few days on a dusty job, the carbon stage when odor breaks through, and the HEPA when the machine's gauge shows the pressure drop climbing or after about 12 months of regular use. Running a loaded HEPA burns the motor and starves airflow, which costs more than the filter. A minihelic gauge on the unit takes the guesswork out, since it reads the restriction directly.

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