Filterbuy 20x21.5x1 MERV 8 Pleated HVAC Air Filters (2-Pack)

Measurement System: 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.

Standard Protection (90%): MERV 8 Air Filters are perfect for almost any home or business seeking great indoor air quality at a reasonable rate.

Superior Protection (95%): MERV 11 Air Filters are ideal for homes or businesses accounting for factors like pets, smokers, and allergy sufferers.

Optimal Protection (98%): MERV 13 Air Filters are perfect for larger homes or businesses, and those who want the best possible filtration experience.

Odor Eliminator (90%): MERV 8 Air Filters with Activated Carbon are perfect for inhibiting unpleasant smells with reliable MERV 8 quality.

What is a MERV Rating? The Minimum Efficiency Reporting Value (MERV) rates a filter's ability to trap particles on a scale of 1-20, with 20 capturing the smallest microns.

MERV 8 filters are perfect for standard home or business needs, trapping 90% of airborne particles 3-10 microns in size. They have 8-14 pleats per foot.

MERV 11 filters are suitable for homes or businesses with factors like pets and allergies, trapping 95% of particles 1-3 microns. They have 8-14 pleats per foot.

MERV 13 filters provide optimal protection, trapping 98% of particles 0.3-1 microns. They have 12-16 pleats per foot, making them ideal for larger spaces and medical settings.

Odor Eliminator Replacement Air Filters with MERV 8 and Activated Carbon effectively capture odors along with 90% of airborne particles 3-10 microns in size.

Our air filters come in popular sizes like 16x25x1, 20x20x1, and 20x25x1, all featuring a MERV 8 rating. Larger homes may benefit from the MERV 11 or MERV 13 options for 95% and 98% filtration, respectively.

Choosing the Correct Filter Size: The nominal size is a rounded whole or half inch, while the actual size depicts the filter's precise dimensions. Measure your current filter to find the right replacement.

Why Change Your Air Filter? Replacing filters regularly maintains air quality, reduces respiratory risks, and keeps your HVAC system running efficiently to save on energy costs.

We generally recommend replacing filters every 90 days, but frequency may vary based on factors like pet ownership, allergies, and household size.

Our filters are universally compatible, but double-check your system's brand name to ensure a perfect fit. The number of filters needed depends on your home's specific configuration.

Changing the filter is simple - just turn off power, remove the old one, and insert the new filter in the airflow direction, then replace the cover and restore power.

About Filterbuy: We're committed to providing clean, healthy indoor air for all. Our premium, American-made filters come in custom sizes to fit any system. Subscribe and save with our hassle-free delivery service.

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