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Frigidaire FAS257S2A12 Filter
The unit filter is designed to be good at filtering minute dust particles and other particles as it is being forced through the system. This filtering system will help keep the wall unit from building up too much dust and make it operate a lot better at doing its job while also cleaning the air you breathe in your house. Because of this, the filter should be changed out or possible scrubbed clean at least twice a year if not more, depending on how much you use it.
Signs to an under performing air filter
- Professionals have suggested to switch out the air filter in your unit every three months in order to have cleaner breathable air inside
- The main filter looks very bad and should be replaced real soon
- When you face it toward a light, the light will not penetrate through the dirt filled filter
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