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Second Stage Pre-Filter
Renew your DefendAir airscrubbers

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.

Synthetic fiber filter media rated at 30% efficiency. Captures larger particles to help extend the life of the HEPA filter.
Item #F271
(Pack of 12)


Features & Benefits

  • High dust-holding capacity
  • Minimal airflow loss means superior efficiency

Accessories/Related Products

 • DefendAir HEPA 500 (115V)
 • DefendAir HEPA 500 (230V)