How often should you change your air filter in your house?
How often should you change your air filter in your house? For basic 1"–3" air filters, manufacturers typically tell you to replace them every 30–60 days. If you suffer from light to moderate allergies, you could install a better air filter or replace them even more regularly. Why should you change your air filter? Changing the air filter regularly helps prolong engine life because the air filter is designed to trap damaging dirt and debris that can damage internal engine parts such as the cylinders and pistons. Engine damage can occur from particles as small as a grain of salt...