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International Comfort Products N9MP2080F16C2 Air Filter
The main filter can filter out contaminants and other particles from the air inside the house. It is suggested the your furnace filter gets replaced every 90 days or so because the filter can get clogged and may result in poor air flow throughout the home. The dimensions of the air filter can not be a choice of options due to the constraint of the availability of room of your air handler.
Signs of a worsening main filter
- The air filter looks bad and probably should be replaced soon
- Professionals have advised to replace the filter every three months to keep the house clean and less dusty
- Sunlight will hardly breach the other side of a dirty filter
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