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Carrier 25HNA648A0030020 Air Filter
It is recommended that the air filter is replaced for a clean one four times a year because the filter can get clogged and may result in poor air flow inside the house. The dimensions of the filter is not really a choice of options due to the requirement of your system. Filters come in a wide array of types and sizes, in which the one you choose will depend on your air quality needs and whether anyone suffers from allergies in the home.
Major indications to watch for in a bad filter
- If you place a light source behind it, the light does not show through the air filter
- It is greatly suggested to switch out the air filter in your unit about every 90 days to help keep the air fresh and make the unit run more efficient
- The main filter looks brown and should be replaced without delay
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