Reducing the penetration of dust, pollen and other allergens into the air you breathe. Made of high‑strength and environmental protection material, durable and very easy to install. Washable, reusable, and easy to clean. As part of normal maintenance, it can be easily removed and replaced. Keeping the fresh air from being polluted and prevent the secondary pollution. This fliter replacement is fit Blueair Air Purifier AV201/203/270E/303/200 Series.
