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Frigidaire FAS155K1A4 Filter
The filter in the wall unit is good at filtering tiny dust fragments and other particles as it is being forced through the system. This filtering system will help protect the unit and help it be way more efficiently while cleaning the air you breathe in your house. During regular maintenance it should be exchanged or possible scrubbed clean at least twice a year if not more, depending on how much you use it.
What red flags are there that my primary air filter needs replacing?
- The system air filter looks brown and it would be a good idea to replace it right away
- If you place a light source behind it, the light does not break through to the other side of the filter
- Manufacturers have recommended to swap out your air filter four times a year to help clean the indoor air
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