How Often Should I Change My Air Filter?

How often should you change your air filter? It depends on several factors. The fact you recognize your air filter should be changed is a good start as it is vital to ensure optimum air quality. Simple steps like changing your air filter keep you breathing easily and minimize repairs.

As Danny said, the size of your air filter changes how often it needs to be replaced. For standard 1″-3″ air filters, the rule of thumb is to change them every 30 days. Upgrade the air filter or change them more often if you suffer from light to moderate allergies. Pets add another component to the equation. They have a tendency to shed, clogging your air filter quickly. The air filter is doing its job by capturing pet hair and dander, but extremely dirty filters can cause extremely weak HVAC performance.

Your 4″ air filter can last longer, but give it the attention it deserves. An air filter is designed to operate effectively up to a certain point, depending on how much dirt, dust and pollutants it can hold. Overextend changing the filter and you may find yourself replacing the whole unit. Change your 4″ air filter twice a year.

Replacing your air filter within the suggested timeframes leads to a healthy, happy home. Follow our tips to stay comfy, Minnesota!

If you’re interested in learning more about any of these products or technologies, contact your local Minnesota Carrier Factory Authorized Dealer. You can find the one closest to you at

Minnesota furnace repair

For more energy saving and home comfort tips, visit! Stay Comfy, Minnesota is your Minnesota resource for air conditioning repair, furnace repair and HVAC tips and advice.

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