Austin Air Standard Pre-Filter Free Shipping Day Maintains consistent airflow to sustain

Maintains consistent airflow to sustain purification between changes

or outdoor air)

5-Step Filtration System: Washable 2-layer foam filter and E10 emission filter trap up to 98% of dust and dirt

each delivering 146 inches of water lift and 283 CFM

Austin Air Standard Pre-Filter Free Shipping Day Maintains consistent airflow to sustainAustin Air Standard PERMAFILT Pre Filter This replacement filter fits all standard, full sized Austin Air purifiers. Fits Healthmate, Healthmate Plus, Allergy Machine, Pet Machine and Bedroom Machine. This is the outer filter for your Austin Air purifier, responsible for trapping large particles. This filter can be vacuumed from the outside and eliminates costly three month filter changes.