The first filter in the Austin Air Machine system, the Permafilt Pre-filter traps large dust particles to increase the effectiveness of your HEPA, Superblend or HEGA filtration systems. Designed for longevity, the pre-filter can be vacuumed from outside to eliminate costly 3 month filter changes. The Permafilt Prefilter is for use in all Austin Air Health Mate air cleaners.
Manufacturer accepts returns up to 30 days after purchase. If you need to return the product, please call customer service at: 1-800-366-6056 for assistance.