What is the Standard Air Filter Size for a Home?

Learn how to find the right size air filter for your home or business HVAC system. Find out how to measure your current filter and shop for standard one-inch size air filters.

What is the Standard Air Filter Size for a Home?

Are you looking for the right air filter size for your home or business HVAC system? It's important to choose the right size air filter to ensure that your heating and cooling system is running efficiently and effectively. The primary purpose of air filters is to protect your HVAC equipment from damage caused by dust and dirt accumulation on the coils. When shopping for an air filter, you'll want to look for the nominal size, which is a rounded number based on the actual dimensions of the filter. If the filter is too small, it won't fit properly and some of the air (and dirt) will not pass through.

Placing the filter backwards may also cause it to collapse, which will cause airflow to circulate around the filter instead of through it. You can find standard one-inch size air filters at Lowes, Home Depot, Walmart, or online. Aerosol ions are also effective in reducing bacteria, viruses, odors and other contaminants that exist in the air you breathe inside your home. Colorfil filters, originally created for NASA, help eliminate chemicals and odors at a molecular level that normal air filters can't.To find the right size air filter for your HVAC system, measure the length, width, and depth of your current filter.

Round to the nearest inch to create the nominal filter size, which is the measurement you will use when purchasing a filter. This video guides you through the step of identifying the right air filter for your home or business HVAC system. Now instantly improve air quality by choosing the right MERV rating because your family deserves the best. Don't forget to check with your HVAC service company for replacement services as well as system repair and unit installation services.

Penelope Ruelle
Penelope Ruelle

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