Filterbuy 20x25x6 Air Filter MERV 13 Optimal Defense (1-Pack), Pleated HVAC AC Furnace Filters Replacement

The Measurement System and MERV Ratings

The Minimum Efficiency Reporting Value (MERV) rates the ability of air filters to trap particles on a scale of 1-20, with 20 capturing the smallest microns. This measurement system allows you to select the right filter for your needs.

Standard Protection (90%): MERV 8 Air Filters These filters are perfect for almost any home or business seeking great indoor air quality at a reasonable cost. They capture 90% of airborne particles between 3-10 microns, including dust, debris, dander, mold, and pollen.

Superior Protection (95%): MERV 11 Air Filters Ideal for homes or businesses with factors like pets, smokers, and allergy sufferers, these filters capture 95% of particles between 1-3 microns, including smoke and smog.

Optimal Protection (98%): MERV 13 Air Filters Providing the best possible filtration, MERV 13 filters are perfect for larger homes/businesses and trap 98% of particles between 0.3-1 microns, including bacteria.

Odor Eliminator (90%): MERV 8 Air Filters with Activated Carbon These filters combine reliable MERV 8 performance with activated carbon to inhibit unpleasant household odors while maintaining 90% airborne particle capture.

Choosing the Right Filter Size When selecting a replacement filter, pay attention to both the nominal (rounded) and actual (precise) sizes. Measure your current filter to find the right fit for your HVAC system.

Why Change Your Air Filter? Replacing filters regularly maintains indoor air quality, prevents system issues, and reduces energy costs. We recommend changing every 90 days, though frequency may vary based on your environment.

About Filterbuy At Filterbuy, we're dedicated to providing clean, healthy air for all. Our made-in-the-USA filters feature premium materials and construction for superior performance. We offer hundreds of custom sizes to ensure a perfect fit, no matter your needs.

Our new green frames symbolize the peace of mind that comes with knowing your home or business is properly cared for. When you see the Filterbuy green, you can breathe easy.

We're a small, family-owned company that's evolved from our 1958 origins. As we've grown, we've stayed true to our values of community investment and personal aid. From custom orders to subscription services, we're here to make filter changes simple and hassle-free.

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