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Frigidaire FRA054XT71 Filter
The filter in the wall unit has the main responsibility for removing microscopic dust and other tiny bits as it is being forced through the system. This filtering system will help keep the unit clean and make it work much more efficient while, at the same time, filtering the air you breathe. Due to the fact that this is an important part of the system, the unit filter must be exchanged or simply cleaned at least twice a year if not more, in order to keep things clean.
Easy warnings of a weakening main filter
- When you hold it up, the light will barely shine through a very dirty air filter
- It looks brown and maybe should be replaced right now
- Many pros have recommended to replace your air filter about every 90 days for to keep the air inside the house cleaner
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