Filterbuy 20x25x1 MERV 11 Allergen Defense Air Filters (1-Pack)

A MERV Rating Explained The Minimum Efficiency Reporting Value (MERV) rates a filter's ability to capture airborne particles on a scale of 1-20, where higher numbers indicate enhanced filtration. This measurement helps determine the appropriate filter for your home or business needs.

MERV 8 Air Filters: Standard Protection Providing 90% airborne particle capture, MERV 8 filters are a great choice for most residential and commercial spaces, effectively trapping dust, pollen, and lint without restricting airflow.

MERV 11 Air Filters: Superior Protection Designed for homes and businesses with pets, smokers, or allergy sufferers, MERV 11 filters capture 95% of airborne particles as small as 1-3 microns, including smog and smoke.

MERV 13 Air Filters: Optimal Protection For larger properties or those seeking the best filtration, MERV 13 filters remove up to 98% of particles down to 0.3 microns, ideal for medical facilities and allergy-prone environments.

MERV 8 Air Filters with Activated Carbon: Odor Elimination Combining the standard 90% particle capture of MERV 8 with the odor-absorbing properties of activated carbon, these filters are perfect for homes and businesses looking to eliminate unpleasant smells.

Choosing the Right Fit When selecting a replacement air filter, be sure to measure your existing filter's actual dimensions (width x length x depth) rather than relying on the nominal size (the nearest rounded number). This will ensure a proper fit for your HVAC system.

Why Change Your Air Filter? Regularly replacing your air filter is crucial for maintaining indoor air quality, protecting your HVAC system from damage, and reducing energy costs. We generally recommend changing filters every 3 months, though frequency may vary based on factors like pet ownership, allergy concerns, and the number of occupants.

About Filterbuy Filterbuy is committed to providing premium, American-made air filters that improve indoor air quality and enable healthier living. Our wide selection of custom sizes, MERV ratings, and specialty features ensures we have the perfect filter to meet your needs. Plus, our subscription service makes filter changes a breeze.

From our humble beginnings in 1958 to our current nationwide presence, Filterbuy has remained dedicated to investing in local communities and delivering exceptional customer service. When you see our green frames, you can trust you're getting a quality product that will keep your air clean and your home or business running efficiently.

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