Replacement particle filters for the Blueair 400 series air purifiers. Includes 1 HEPASilent polypropylene pleated filter to remove airborne particles including allergens, pollen, mold spores, dust, pet dander, bacteria, and viruses. Filter can be vacuumed to prolong filter life and efficiency. Replace filter every 6 months.

		Blueair 400 Series HEPASilent Particle Filter
		Includes 1 HEPASilent particle filter for the Blueair 401, 402, 403, 450E air purifiers. One complete filter change. Replace every 6 months.