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Frigidaire FAH12ES2TB Filter
The filter in the wall unit is there for removing microscopic dust and other tiny bits as it passes through. This can both help keep the wall unit from building up too much dust and make it work much more efficient while cleaning the air breathe in and out everyday. During regular maintenance the filter should probably be swapped out for a new one or simply cleaned periodically in order to keep things clean.
Easy warnings of a weak main filter
- Professionals have recommended to switch out the air filter in your unit four times a year to help prevent mold and bacteria build-up
- The system air filter looks brown and could be replaced without delay
- If you were to lift up the filter, the light cannot break through to the other side of a very dirty air filter
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