Filterbuy 20x21x1 MERV 8 Air Filters for HVAC, 4-Pack

The Minimum Efficiency Reporting Value (MERV) is a rating system that evaluates the ability of air filters to capture particles on a scale of 1 to 20, with 20 representing the smallest microns captured. At Filterbuy, we offer a range of MERV-rated air filters to cater to different needs and preferences.

For standard protection, our MERV 8 air filters are perfect for most homes or businesses seeking great indoor air quality at a reasonable cost. These filters trap 90% of airborne particles such as dust, pollen, and lint.

For superior protection, our MERV 11 air filters are ideal for homes or businesses with factors like pets, smokers, or allergy sufferers. These filters capture 95% of airborne particles, including smaller ones like smoke and smog.

For optimal protection, our MERV 13 air filters are perfect for larger spaces or those who want the best possible filtration experience. These filters trap 98% of airborne particles, including bacteria.

Additionally, we offer MERV 8 air filters with activated carbon, which are designed to inhibit unpleasant odors while providing reliable MERV 8 quality filtration.

When choosing the right air filter, it's important to consider the nominal size (rounded to the nearest inch) and the actual size (precise measurement) of your existing filter. We recommend replacing your air filter every 90 days to maintain optimal indoor air quality and system efficiency.

At Filterbuy, we are committed to providing clean, healthy air for all. Our air filters are proudly manufactured in the USA, using premium materials and advanced filtration technology. We offer a wide range of custom sizes to ensure a perfect fit for your HVAC system, and our subscription service makes filter changes hassle-free.

Breathe easy with Filterbuy – your trusted source for high-quality, American-made air filters that deliver uncompromising performance and peace of mind. Enhance your indoor air quality and safeguard your family's well-being with our comprehensive filtration solutions.

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