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A Minimum Efficiency Reporting Value, or MERV, rating for your HVAC system’s air filter lets you know how well it can remove pollutants from your Siesta Key, Florida, home. ASHRAE, the American Society of Heating, Refrigerating, and Air Conditioning Engineers, designed these ratings to make buying the best air filters for your needs easier. Filters with higher scores can trap additional pollutants and improve your home’s indoor air quality. MERVs can range from 1 to 20, and air filters with different ratings have varying uses, from catching dust to getting rid of viruses and bacteria.

MERV 1 to 4

Air filters with these ratings can trap dust mites, pollen, carpet fibers, and other large particles in your house’s air. They’re the least expensive, and they can protect your HVAC system from breakdowns or reduced airflow caused by excess dust. However, you’ll need to change them more often than other air filters, and they won’t protect you and your family members from many contaminants.Since these filters don’t restrict as many contaminants, more particles enter the air handler, necessitating more frequent system cleanings.

MERV 5 to 8

These air filters work well in most homes. They can help you reduce biological growth, pet dander, and pest droppings in your indoor air, along with bigger particles.

MERV 9 to 12

Choose a filter with one of these ratings if you have asthma, allergies, or other respiratory problems. They can catch some types of bacteria and dust particles, and they’re the best filters that can fit in most residential HVAC systems. However, the smaller openings in these filters can restrict your system’s airflow and force it to work harder. That means you could have higher utility bills with a higher-rated air filter.

MERV 13 to 20

These filters can trap viruses and all types of bacteria. Hospitals and electronics manufacturers often use them to keep their indoor air as sterile and clean as possible.

Aqua Plumbing & Air has decades of heating, cooling, and indoor air quality solutions experience, and we guarantee 100% satisfaction for our customers. For more information about choosing the best air filter for your HVAC system and excellent service, call our team at (941) 306-3715.

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