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International Comfort Products PGMD24G0408 Air Filter
It is recommended the your furnace filter is changed every 90 days or so because the filter can get clogged and may result in poor air flow through the ducts. The height, length and width of the whole house filter optional choice but rather a requirement of your furnace or handler. All air filters exist in many different types and sizes, depending on your air quality needs and whether anyone suffers from allergies in the home.
Major warnings your main filter will need replacing
- Many pros have recommended to swap out your air filter four times a year to help prevent bacteria from spreading too much
- If you lift the air filter up to a source of bright light, the light will barely break through to the other side of the filter
- The main filter looks gray or brown and it would be best to replace it immediately
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