Dri-Eaz DefendAir HEPA 500 Filter 1st Stage Dri-eaz

High-quality filter restores the Dri-Eaz HEPA 500 to full efficiency. Replace regularly to ensure maximum performance.

Synthetic fiber filter media rated at 10% efficiency. Captures the largest particles to help extend the life of the Primary HEPA filter inside. Use for both first stage F270 and second F271 for standard air scrubbing in environments with higher particle loads, such as construction or remodeling sites.

Product Features:

• Low-pressure drop and superior efficiency
• High dust-holding capacity 

The DefendAir HEPA 500 may be set up in a variety of filter configurations to suit your particular air scrubbing requirements. Use the chart below to find the best filtering configuration for the job at hand. 

Filter Descriptions

• 1st Stage Pre-Filter (F270). Synthetic fiber filter media rated at 10% efficiency. Captures the largest particles to help extend the life of the higher efficiency filters inside. More info.
• 2nd Stage Pre-Filter (F271 or AC36F2). Synthetic fiber filter media rated at 30% efficiency. Captures larger particles to help extend the life of the HEPA filter. More info.
• DOP Stage 2 Pre-Filter (F415). Use of the DOP filter ensures laboratory-rated performance for sensitive jobs requiring first-pass HEPA filtration. More info.
• Activated Carbon Filter (F397). The activated carbon filter allows the removal of a wide variety of compounds, including volatile organic compounds (VOCs), food odors, fumes from paint and paint thinners, sewer odors, and many other noxious odors. Combining activated carbon filtration with HEPA filtration is especially effective in removing airborne soot particles and the odors they create. More info
• HEPA filter (F321). The HEPA filter has an efficiency rating of 99.97% against 0.3-micron oily aerosol particles. The HEPA filtration standard was developed in the 1940s to control radioactive dust particles in U.S. nuclear laboratories. More info.