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Frigidaire FRA052XT724 Filter
The air filter is there for filtering out dust and other small elements as it passes through. This can both help keep the wall unit from building up too much dust and make it run much more efficient while also cleaning the air you breathe. Because of this, this filter should really be changed out or perhaps cleaned thoroughly at least twice a year if not more, in order to keep things clean.
Some warnings the air filter has little life left
- The filter looks bad and perhaps should be replaced immediately
- If you lift the air filter up to a source of bright light, the light will almost not show through a completely clogged filter
- Many pros have suggested to switch out the air filter in your unit every season of the year to help purify the air indoors
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