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Dri-Eaz DOP Pre-filter for HEPA 500, each

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DOP Stage 2 HEPA 500 Pre-Filter
Gives the DefendAir® HEPA 500 first-pass filtration efficiency

The addition of the DOP filter makes the DefendAir HEPA 500 a high efficiency three-stage air filtration unit, ready for any sensitive job requiring first-pass HEPA filtration. With the standard pre-filter, DOP Stage 2 pre-filter and the HEPA primary filter installed, the HEPA 500 passes laboratory DOP testing conducted per ANSI standards, achieving an efficiency rating of 99.97% against oily aerosol particles down to 0.3 microns.

16" x 16" x 1" DOP Pre-Filter for HEPA 500. Each, 4 per pack

This is NOT the replacement HEPA for the Dri-Eaz 500, see

Filter Type:
2" Prefilter
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Dri-Eaz Replacement HEPA Filter for HEPA 500
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