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Williams 4007732 Filter
The filter in the wall unit is designed to be good at filtering tiny dust fragments and other small elements as it passes through. This can both help keep the wall unit from building up too much dust and make it work way more efficiently while also cleaning the air you breathe in your house. Because it is really easy to do, this filter should really be simply replaced or perhaps washed a few times a year in order to keep things clean.
Red flags of a worsening air filter
- If you place a light source behind it, the light will not shine on the opposite side of a very dirty air filter
- The system filter looks brown and maybe should be replaced before tomorrow
- Many pros have suggested to replace the filter every season of the year in order for the machine to run more efficient and to breathe easier inside
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