How often should you change your air filter?
how often you should change your air filter?
It is a general recommendation that you should change your air filter in your home every 30 days when using less expensive fiberglass filters. High-end pleated filters can last as long as 6 months, but these typical guidelines assume average use and don't take into account the size and type of filter.
Air filter model
Total indoor air quality
Number of pets
Household size
Air pollution levels and new construction around the residence
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.
Here are a few averages that may help you know how regularly you should get a new air filter at your residence:
* Vacation house or one occupant and no pets or allergies: every 6–12 months
* Ordinary suburban home without pets: every 90 days
* One dog or cat: every 60 days
** More than one pet or if anyone has allergies: 20–45 days
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