Permafilt Pre-Filter replacement for standard size Austin Air Purifiers.
The Pre-filter traps large dust particles from entering the inner filtering. It is designed to be vacuumed from outside and eliminate costly 3 month filter changes.
- Austin Air HealthMate Air Purifiers
- Austin Air HealthMate Plus Air Purifiers
- Austin Air Allergy Machine Air Purifiers
- The National Sleep Foundation Bedroom Machine by Austin Air.