Filterbuy 20x30x1 Air Filter MERV 11 Allergen Defense (4-Pack)

At Filterbuy, we pride ourselves on 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 can find the perfect fit, regardless of your specific needs. This helps us achieve our goal of providing you, your family, and your community access to clean indoor air that enables you to live and breathe freely.

Our products are unique due to the premium features we offer, such as a pleated, electrostatic design that captures more particles and a reinforced beverage board frame capable of withstanding extreme temperatures. This enhanced filtration experience sets our products apart.

We solve the problem of allowing customers to simply purchase the exact filter size they need from the comfort of their homes. 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.

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

When choosing the correct filter size, consider the nominal size (rounded to the nearest whole or half inch) and the actual size (the filter's precise dimensions). To measure your air filter, use a tape measure to record the width, length, and depth, then round up to the nearest inch to find the corresponding nominal size.

Replacing your air filter regularly is crucial to maintain a healthy lifestyle, as breathing dirty air can lead to asthma, allergies, and other respiratory issues. We generally recommend replacing your filter every 90 days to keep your system running efficiently and air clean, but this may vary based on factors like pet ownership, allergies, and the number of people in your home.

Our filters are universally compatible and will work with any furnace, air conditioner, heat pump, or HVAC system, as long as you choose the proper size. The number of filters you need depends on the specific needs of your home or business, and we offer packages ranging from 1 to 12 filters to cater to different requirements.

Changing your air filter is a simple process: turn off the power, remove the cover from your intake vent, take out the old filter, and insert the new one in the direction of airflow. Replace the cover and turn the power back on.

At Filterbuy, we are committed to providing better air for all. We offer a variety of custom sizes, expert services, and high-quality products manufactured in the USA to ensure everyone has access to clean indoor air. Our new green frames symbolize the peace of mind that comes with breathing crisp, pure, fresh air. Join our subscription service to simplify the filter replacement process and enjoy discounts on every delivery.

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