Blueair Blue Pure 3450i Max Series AllergenBlock Filter, Genuine Replacement Filter for Allergies, Pollen, Dust, Pet Dander, Air Purifier

IMPROVE YOUR DEFENSES: Blue Pure 3450i AllergenBlock Blueair filter is designed for optimal performance; compatible with 3450i air purifier INCREASE ALLERGEN PROTECTION - AllergenBlock defense layer neutralizes over 90% of allergen properties such as dust, pollen, and pet dander that cause sneezing and can trigger discomfort* AUTOMATIC FILTER REPLACEMENT: Subscribe and save up to 15% on auto-delivery filters when they need to be replaced; when used 24 hours a day, your Blueair filter should be replaced every 6 months to effectively reduce air pollutants and allergens SNEEL-PROHIBITING ALLERGENS: Four layers of air purifier filtration; AllergenBlock defense layer neutralizes over 90% of pollen, dust and pet dander in the Blueair filter; charcoal layer reduces light household odors*