Filterbuy 20x20x1 MERV 11 Allergen Defense Air Filters (4-Pack)

At Filterbuy, we take pride in being a one-stop shop for all your air conditioner, furnace, or HVAC system filter replacements. We offer hundreds of custom sizes in a variety of filtration ratings to ensure you find the perfect fit, regardless of your specific needs. Our goal is to provide you, your family, and your community access to clean indoor air, enabling you to live and breathe freely.

Our products are unique in that they feature premium features, including a pleated, electrostatic design that captures more particles and a reinforced beverage board frame capable of withstanding extreme temperatures. We give customers the ability to easily purchase the exact filter size they need from the comfort of their homes, and our robust supply chain ensures we can deliver these custom sizes quickly at no extra cost.

We love being able to provide a service that helps keep our community healthy. Our air filters come in various sizes, including 20x20x1, 16x25x1, and 20x25x1, as well as the 20x25x5 Honeywell air filters. These filters are available in different MERV ratings, offering standard (MERV 8), superior (MERV 11), and optimal (MERV 13) protection, as well as an odor eliminator option (MERV 8 with activated carbon).

MERV stands for Minimum Efficiency Reporting Value, and it rates the ability of filters to trap particles on a scale of 1-20, with 20 capturing the smallest microns. MERV 8 filters are perfect for almost any home or business that wants great indoor air quality at a reasonable rate, while MERV 11 filters are ideal for homes or businesses accounting for factors like pets, smokers, and allergy sufferers. MERV 13 filters are perfect for larger homes or businesses and those who want the best possible filtration experience.

Our MERV 8 air filters with activated carbon are perfect for homes or businesses that want to inhibit unpleasant smells while maintaining reliable MERV 8 quality. We offer a subscription service to simplify the process of regularly changing your air filters, and we are proud to be 100% American-made, with a robust, homegrown network that allows us to swiftly fulfill diverse, custom orders across the country.

At Filterbuy, we believe that everyone deserves to breathe clean air, and we work tirelessly to make that a reality. Our commitment to community investment and personal aid has been a part of our core values since our inception in 1958, and as we continue to expand, we remain true to these principles.

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