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Frigidaire FAS256R2AA Filter
The filter in the wall unit has a main job of trapping really small dust parts and other small elements as it passes through. This can both keep the unit clean and make it run way more efficiently while cleaning the air in your home. During regular maintenance the filter should be exchanged or simply cleaned at least twice a year if not more, in order to keep things clean.
Major indications the dust filter will need replacing
- Sunlight will not permeate to the other side of the filter at all
- It looks bad and could be replaced ASAP
- Many pros have recommended to replace the filter every three months so as to have cleaner breathable air
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