Filterbuy 18x20x1 MERV 8 Odor Eliminator Air Filters (4-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 with factors like pets, smokers, and allergy sufferers.

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

Odor Eliminator (90%): MERV 8 Air Filters with Activated Carbon inhibit unpleasant smells while providing reliable MERV 8 quality.

Nominal vs. Actual Size: The nominal size is a rounded number, while the actual size depicts the filter's precise dimensions. Measure your current filter to find the right replacement.

When to Change Filters: We recommend replacing filters every 90 days to maintain efficiency and air quality, though frequency may vary based on factors like pets and allergies.

Compatibility: Our filters are universally compatible with most HVAC systems, but check for brand-specific models.

Quantity Needed: The right number depends on your home's vents, with package sizes ranging from 1 to 12 filters.

Changing Filters: Turn off power, remove the old filter, and insert the new one matching airflow direction before restoring power.

About Filterbuy: We champion indoor air quality, providing custom sizes, premium materials, and a robust supply chain to improve community health. Our products are 100% American-made, and we offer subscription services to simplify filter changes. As a family-owned business since 1958, we're committed to giving back.

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