F5MAX Allergen Block Genuine Replacement, Blueair Filter Allergens, Pet Hair, Pollen, Dust, Blue Pure 511i Max AllergenBlock Fits Air Purifier

IMPROVE YOUR DEFENCE The Blue 511i Max AllergenBlock Blueair Filter is designed for optimal performance; compatible with the 511i Air Purifier (B08KQHR2KR) Reinforced allergy protection: the AllergenBlock protective layer neutralises over 90 percent of allergenic properties such as sneezing dust, pollen and pet hair, which can trigger discomfort AUTOMATIC FILTER CHANGE: Subscribe and save up to 15 percent on automatically delivered filters when they need to be replaced; with a 24-hour operation, your Blueair filter should be replaced every 6 months to effectively reduce pollutants and allergens in the air Sneeze causing allergens: four layers of air purifier filtering; allergenblock defense layer neutralises over 90 percent of pollen, dust and pet hair on the Blueair filter; carbon layer reduces light household odors