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International Comfort Products PHF Air Filter
HVAC specialists suggest that the filter is exchanged for a new one every 90 days or so as to maintain good airflow inside the house. The height, length and width of the air filter can not be a choice of options due to the requirement of your furnace or handler. The furnace filter can filter out bad things in the air and other particles from the air handler.
What symptoms are present when the main filter needs replacing?
- It is recommended to replace the filter four times a year to assist in keeping the indoor air clean and fresh
- Sunlight will barely infiltrate to the opposite side of a dirty filter
- The system air filter looks dusty and probably should be replaced soon
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