Dri-Eaz F321 HEPA Filter for DefendAir HEPA 500

F321 HEPA filter for the HEPA 500 in Brooklyn, NYC

The F321 is the primary True HEPA filter for the Dri-Eaz DefendAir HEPA 500. It captures 99.97% of particles down to 0.3 microns, including mold spores and fine dust.

We carry F321 filters for the HEPA 500 units we rent. Add them to your rental, or pick them up at our Brooklyn yard if you run your own HEPA 500.

Filter Details

When to Replace the F321

Change it when the HEPA change light comes on, and replace both filters after mold or sewage jobs to prevent cross-contamination. Wear gloves and a respirator when you change filters on mold, sewage or dust jobs, bag the used filter and dispose of it according to local rules.

See the HEPA 500 air scrubber rental and all air scrubber filters.