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Trane PTHD090 Air Filter
It is advised that the filter that filters out particles from your home gets replaced every 3 months to maintain the best air quality throughout the home. The height, length and width of the filter is not really a choice you make due to the constraint of the availability of room of your system. Air Filters are available in many types and sizes, in which the one you choose will depend on your air quality needs and the specific size of filter you need for your system.
Some warnings of a weakening main filter
- The system air filter looks dusty and replacing it would be best real soon
- It is greatly advised to swap out your air filter every 90 days to keep the air inside clean and free of harmful dust
- Sunlight will almost not permeate to the other side of the dirt filled filter
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