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Williams 5009612 Filter
The filter has the basic duty of filtering minute dust particles and other tiny particles from the air in the house. This can both help keep the wall unit from building up too much dust and make it work much more efficient while also cleaning the air in your home. Due to the amount of dust in the house, it should be exchanged or perhaps cleaned thoroughly periodically depending on how much you use it.
Indications your filter will eventually need to be replaced
- The unit air filter looks like it is filled with dust and perhaps should be replaced before tomorrow
- Light does not show through a very dirty air filter
- Manufacturers have recommended to switch out the air filter in your unit every 90 days to help prevent bacteria from spreading too much
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