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Panasonic CS-XE9PKUA Air Filter
All air filters come in a wide array of filtering levels, in which the one you choose will depend on your air quality needs and air handler size requirements. Exact measurements of the filter is not really a personal choice due to the requirement of whoever designed your heating and cooling system. It is advised that the air filter gets replaced every 3 months so as to maintain good airflow through the ducts.
Indications the air filter is failing
- The system filter looks like it is filled with dust and could be replaced before tomorrow
- Manufacturers have suggested to switch out the air filter in your unit about every three months for to keep the air inside the house cleaner
- When you face it toward a light, the light will not shine through the filter
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