Filterbuy 18x18x1 MERV 11 Allergen Defense Air Filters (12-Pack)

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

What makes our products unique? We offer premium features that provide an enhanced filtration experience via a pleated, electrostatic design that captures more particles and a reinforced beverage board frame capable of withstanding extreme temperatures.

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 that 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 filters come in various sizes, including 20x20x1, 16x25x1, 20x25x1, and 20x25x5 Honeywell Air Filters.

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 offer standard protection (90% of airborne particles), MERV 11 filters provide superior protection (95% of airborne particles), and MERV 13 filters offer optimal protection (98% of airborne particles). We also have MERV 8 filters with activated carbon for odor elimination.

We offer a variety of filter sizes, including 18x18x1, 16x25x1, 20x20x1, and 20x25x1, with MERV 8, 11, and 13 ratings, as well as MERV 8 with activated carbon for odor elimination. Our filters are highly rated by customers, with 4.7 out of 5 stars for the 20x20x1 MERV 8 filter and 4.7 out of 5 stars for the 20x25x1 MERV 8 filter.

We are committed to providing clean indoor air for all, and we believe that everyone deserves to breathe freely. Our filters are designed to capture a wide range of particles, including dust, mold, pollen, lint, and dander, and our MERV 13 filters can even capture bacteria. We also offer options for homes or businesses that need to inhibit unpleasant smells.

To ensure a perfect fit, we provide guidance on measuring your air filter and understanding the difference between nominal and actual sizes. We recommend replacing your filter every 90 days to maintain efficiency and air quality, and our subscription service makes this process even easier.

Filterbuy is a proudly American-made company, with a robust manufacturing network across the country. We are dedicated to our local communities and continue to invest in them through various initiatives. Our new, green frames symbolize the peace of mind that comes from knowing your home or business is being properly cared for.

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