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Friedrich WE10B33A-B Filter
The filter in the wall unit is responsible for filtering out dust and other particles as it is being forced through the system. The filter can both protect the unit and help it be a lot better at doing its job while also cleaning the air you breathe. During regular maintenance this filter should really be exchanged or perhaps cleaned thoroughly periodically in order to keep things clean.
Red flags the primary air filter will need to be replaced
- Many pros have advised to swap out your air filter four times a year to help prevent bacteria from spreading too much
- The air filter looks gross and should be replaced before tomorrow
- If you hold it up to the light, it will barely shine through to the other side of the air filter
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