SafeHome Duo Air Purify Furnace Filter 21x20.75x4 In.
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SafeHome Duo Air Purify Furnace Filter 21x20.75x4 In. Overview
21 x 20.75 x 4 In. Furnace Air Filter Replace your current 21 inch by 20.75 inch by 4 inch disposable furnace filter with the new Safe Home(TM) Duo4. This powerful disposable air filter fits tightly to give maximum effectiveness at capturing allergens, odors, and chemicals from the air in your house. Use for furnace filter slots, temporary needs, or custom sizes in air return grills. The Duo4 replaces any 4" thick home air filter in any location and can last up to 9 months. Designed to replace either 4" or 5" filters, the Duo4 traps hazardous chemicals, odors and allergens unlike any other filter. How does the Duo4 work? - The polyester outer layers remove pollen, mold spores, and other common allergens. The inner layer features FormaldaSorb(TM) and activated carbon that traps a variety of odors and hazardous gasses, such as formaldehyde, ammonia, and others that are emitted by cleaning chemicals, paint, particle board, and other household items. No other filters are as effective at removing dust mites, mold spores, pollen, odors, cleaning chemicals, ozone, paint fumes, and common gasses like formaldehyde which triggers asthma and allergies. Safe Home Duo4 Filter Features: Dimensions: 21 inch by 20.75 inch by 4 inch Captures up to 95% of common household allergens Eliminates odors from pets, paint, cooking, and more Uses high density carbon and advanced compounds FormaldaSorb(TM), a patented potassium permanganate product plus the activated carbon in the second layer of the filter trap gasses that can cause health issues. Highly effective and affordable. Twin filter pad: MERV 8 polyester white ASHRAE rated allergen filter plus an industrial chemical and odor filter, i.e. the activated carbon filter pad. Made in USA. Note: This furnace filter is not a control device for radon, carbon monoxide or carbon dioxide. Limited Warranty: Free of manufacturing and material defects . If product is found defective within 30 days of purchase, it will be replaced at n
