$100.00 (Fixed Shipping Cost)


DefendAir HEPA 500
Versatile air scrubber and negative air machine

Get high efficiency air filtration and great versatility in a highly portable package. The DefendAir HEPA 500 combines advanced air scrubbing performance with the features and functions that help to make the restorer’s job easier, faster, and more profitable. 
The DefendAir HEPA 500 uses HEPA filter media with an efficiency rating of 99.97% against 0.3-micron oily aerosol particles. When used with the DOP 2nd stage filter, the HEPA 500 meets first-pass filtration requirements for sensitive jobs. The optional Activated Carbon Filter allows users to quickly and effectively attack smoke and other noxious odors in the environment. See all HEPA 500 filtration options here

Designed for Restoration 
The HEPA 500 is ideal for handling indoor air quality needs on every restoration job. Restoration that involves sewage, mold, or fire damage involves significant amounts of particulates and bad-smelling gasses – a direct result of the damage itself. In a water damage restoration environment, the high-velocity airflow needed for drying can stir up particulates that have settled in carpet or on other materials. The HEPA 500 addresses these air-quality issues quickly and effectively, helping you to maintain a clean, odor-free indoor environment for your technicians – and your customers.  

Replacement Filters

HEPA Primary Filter (F321)

First Stage Pre-Filter (F270)

Second Stage Pre-Filter (F271)

Activated Carbon Filter (F397) - Used for filtering out odor causing VOCs


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 filtration setup for your project.

Filtering Application First filter position Second filter position Final filter position (HEPA)
Clean water loss air scrubbing. For a relatively clean environment. n/a 30% Prefilter (F271) HEPA filter (F321)
Standard air scrubbing. For environments with higher particle loads, such as construction or remodeling sites. 10% Prefilter (F270) 30% Prefilter (F271) HEPA filter (F321)
First pass efficiency air filtration. For use with a negative air setup during remediation of high risk contaminants and/or when DOP testing is required. 30% Prefilter (F271) DOP Prefilter (F415) HEPA filter (F321)
Odor control and air filtration. For the removal volatile organic compounds (VOCs), food odors, fumes from paint and paint thinners, sewer odors, and many other noxious odors. Activated Carbon Filter (F397) 30% Prefilter (F271) HEPA filter (F321)



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