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International Comfort Products PGC036H100F Air Filter
It is recommended that the filter is exchanged for a new one every 90 days or so as to maintain good airflow through the ducts. The measurement proportions of the filter is not a choice of options due to the constraint of the availability of room of the manufacturer of your system. All air filters are made in lots of filtering levels, in which the one you choose will depend on your air quality needs and air handler requirements.
Red flags of a weakening filter
- Sunlight cannot shine through to the other side of a very dirty air filter
- The unit air filter looks gray or brown and the best thing to do would be to replace it as soon as humanly possible
- Manufacturers have suggested to replace the filter four times a year in order to have cleaner breathable air inside
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