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Panasonic CS-KS18NB4UW Air Filter
The main filter filters out some allergens and other particles from the air handler as well as the home. HVAC specialists suggest that the air filter is exchanged for a new one every 90 days or so because the filter can get clogged and may result in poor air flow in the home. The size of the filter is not really a choice of options due to the requirement of your furnace or handler.
Clues of a barely functioning primary air filter
- If you place a light source behind it, the light will barely shine on the opposite side of the filter at all
- Many pros have recommended to replace the filter every 90 days to keep the air fresh for the family
- The air filter looks dirty and probably should be replaced before tomorrow
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