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Frigidaire CRA107BU112 Filter
The unit filter has the main responsibility for filtering out dust and other tiny bits as it passes through. The filter can both help keep the wall unit from building up too much dust and make it operate more efficient while cleaning the air in your home. During regular maintenance the air filter must be replaced or perhaps cleaned thoroughly at least twice a year if not more, depending on how much you use it.
Clues to watch for to know your main filter has to be replaced
- As you face it toward a light source, it will almost not shine on the opposite side of a completely clogged filter
- The air filter looks dusty and it would be best to replace it real soon
- Many pros have recommended to replace your air filter every 90 days in order to have clean air running through the unit
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