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International Comfort Products PGMD48H135C Air Filter
It is suggested the your furnace filter is changed every 90 days or so as to maintain good airflow in the home. All air filters exist in many different filtering types which all depends on your personal desire for cleaner air and air handler size requirements. The size of the air filter can not be a personal choice but rather a requirement of the manufacturer of your system.
Simple signals the primary air filter is failing
- The system air filter looks dirty and maybe should be replaced as soon as you can
- If you were to lift up the filter, the light will almost not break through to the other side of a clogged air filter
- It is greatly advised to replace your air filter four times a year to keep the air fresh for the family
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