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Kenmore 661624670 Air Filter
Filters are made in lots of filtering levels, depending on your desire for cleaner air and the specific size of filter you need for your system. The height, length and width of the air filter can not be a choice of options due to the constraint of the availability of room of the manufacturer of your system. It is advised the your furnace filter is changed four times a year to maintain the best air quality inside the house.
Some clues your filter should be replaced
- The main filter looks dusty and maybe should be replaced ASAP
- It is recommended to swap out your air filter four times a year in order to have clean air in the home
- Sunlight is unable to penetrate through a very dirty air filter
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