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Carrier 25HNA660A0030020 Air Filter
It is advised that the filter is exchanged for a new one every 3 months so as to maintain good airflow throughout the home. The size of the filter is not a optional choice because it is based on the declared size of the manufacturer of your system. All air filters exist in many different filtering types in which the one you choose will depend on your air quality needs and air handler size requirements.
Major clues of a deteriorating air filter
- The main filter looks very bad and it would be a good idea to replace it as soon as you can
- Many pros have suggested to swap out your air filter about every 90 days in order for the machine to run more efficient and to breathe easier inside
- When you face it toward a light, the light cannot show through the filter
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