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Carrier 50XT-A42 Air Filter
The main filter should filter a lot of contaminants and other particles from the furnace. The actual dimensions of the filter is not a personal choice due to the constraint of the availability of room of your furnace or handler. It is highly recommended that the filter that filters out particles from your home is replaced for a clean one every 3 months so as to maintain good airflow in the home.
Some clues your Carrier air filter probably needs to be replaced
- The filter looks dusty and it would be best to replace it immediately
- When you hold the filter up to the light, it cannot break through to the other side of the filter
- It is highly recommended to swap out your air filter four times a year to help keep the air fresh and make the unit run more efficient
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