Filterbuy 19x20x1 Air Filters, MERV 8 Dust Defense (4-Pack)

The Measurement System at Filterbuy is known as the Minimum Efficiency Reporting Value (MERV), which rates the ability of air filters to capture particles on a scale of 1-20, with 20 representing the smallest microns trapped. This system allows customers to select the right level of filtration for their needs.

The Standard Protection (90%) MERV 8 Air Filters are perfect for almost any home or business seeking great indoor air quality at a reasonable rate. The Superior Protection (95%) MERV 11 Air Filters are ideal for homes or businesses with factors like pets, smokers, or allergy sufferers. For the Optimal Protection (98%), the MERV 13 Air Filters are perfect for larger spaces or those desiring the best possible filtration.

Additionally, the Odor Eliminator (90%) MERV 8 Air Filters with Activated Carbon are perfect for inhibiting unpleasant smells while providing reliable MERV 8 quality.

When choosing the correct filter size, it's important to understand the difference between the nominal size (rounded measurement) and the actual size (precise dimensions). Measuring the width, length, and depth of the existing filter can help determine the right replacement.

Replacing air filters regularly is crucial for maintaining healthy indoor air and a well-functioning HVAC system. We generally recommend changing the filter every 90 days, although this may vary based on factors like pet ownership, allergies, and household size.

Our air filters are universally compatible and work with most furnaces, air conditioners, heat pumps, and HVAC systems. The number of filters needed depends on the specific requirements of each customer's home or business.

Changing the air filter is a straightforward process: turn off the power, remove the old filter, and insert the new one in the direction of airflow, then replace the cover and turn the power back on.

At Filterbuy, we are committed to providing clean, healthy indoor air for all. Our products are made in the USA with premium features like pleated, electrostatic media and reinforced frames. We offer hundreds of custom sizes to ensure a perfect fit, and our robust supply chain allows for quick delivery.

Our green-framed filters symbolize the peace of mind that comes with knowing your home or business is being properly cared for. As a family-owned and operated company with nearly 70 years of experience, we are dedicated to supporting our communities and making a positive impact.

Customers can simplify the filter replacement process by subscribing to our delivery service, which provides discounts and ensures timely delivery of the right filters. With Filterbuy, you can breathe easier knowing that your indoor air quality is being expertly maintained.

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