3 Pack - PERMAFILT Pre-Filter replacement for our standard HM400 size Austin Air Purifiers.
Compatible Models: HM400 HealthMate, HM450 HealthMate Plus, HM405 Allergy Machine, HM410 Pet Machine, HM402 Bedroom Machine
- Pre-filter traps large dust particles from entering the main filter cartridge.
- Designed to be vacuumed from outside and increase the lifespan of your main filter cartridge.
- White Pre-Filters are for the following coloured units: Sandstone, White.
- Black Pre-Filters are for the following coloured units: Midnight Blue, Black and Silver.
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