White Large Pre-Filter - Austin Air Healthmate BB850AD helping to enclose and seal

helping to enclose and seal the bag area during operation

Fits: SEBO canister vacuums (optional floor nozzle)

Fits: Bissell 3545 Power Glide upright

Because it meets furniture legs and walls during cleaning

we back the CM 7750 with the full manufacturer warranty

White Large Pre-Filter - Austin Air Healthmate BB850AD helping to enclose and sealThis replacement white pre filter fits the Austin Air HealthMate air purifier. It serves as the first filtration stage, trapping larger dust and lint before air reaches the carbon and HEPA media deeper in the unit. Because it catches the coarsest debris, the pre filter saturates faster than the stages behind it, and a clogged one restricts airflow and pushes particles onto the main filter. Air delivery falls and the expensive media wears out sooner.