BLUEAIR Blue Pure 211 Series AllergenBlock Filter Genuine Replacement for Allergies Pet Dander Pollen Dust Fits 211 and 211 Auto 33 x 208 x 123

BOOST ALLERGEN PROTECTION AllergenBlock defense layer neutralizes over 90 of the allergen properties such as sneezeinducing dust pollen and pet dander that can trigger discomfort UPGRADE YOUR DEFENSES Blue Pure 211 Series AllergenBlock Blueair filter is designed for optimal performance Compatible with 211 and 211 Auto air purifier SNEEZEINDUCING ALLERGENS Four layers of air purifier filtration AllergenBlock defense layer neutralizes over 90 of pollen dust and pet dander on the Blueair filter Carbon layer reduces light household odors AUTOMATED FILTER REPLACEMENT Subscribe and save up to 10 on autodelivered filters when replacement is needed When used 24 hours a day your Blueair filter should be replaced every 6 months to effectively reduce airborne pollutants and allergens