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Frigidaire FAX052P7A15 Filter
The filter in the wall unit is there for removing microscopic dust and other tiny particles as it is being forced through the system. This can both protect the unit and make it work much more efficient while cleaning the dust out of the air you breathe all day. Because of this, the filter should probably be simply replaced or cleaned every so often in order to keep things clean.
Symptoms of a worsening air filter
- The unit air filter looks dusty and probably should be replaced real soon
- Sunlight does not show through the filter
- It is advised to swap out your air filter every three months to keep the air fresh for the family
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