DefendAir 500 2nd Stage Pre-Filter F271
- Filter (16 x 16 x 1 30%)
- Second Stage Filter for the DefendAir 500 Air Scrubber
- Regular filter replacement ensures maximum efficiency and helps to prevent cross contamination. Sturdy, high capacity filters effectively captures airborne particles; won’t “blow out” under heavy use.
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Synthetic fibre filter media rated at 30% efficiency. Captures larger particles to help extend the life of the main HEPA filter.
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Sold as single filter.
HEPA 500 FILTER CONFIGURATIONS Filtering requirements PREFILTERS (Positions 1 & 2) HEPA (Position 3) 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 remodelling 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. See “About DOP Frst-Pass Filtration Efficiency,” p. 3. 30% Prefilter (F271) DOP Prefilter (F415) HEPA filter (F321) Odour control and air filtration. For removing volatile organic compounds (VOCs), food odours, fumes from paint and paint thinners, sewer odours, and many other noxious odours. Activated Carbon Filter (F397) 30% Prefilter (F271) HEPA filter (F321)
