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Friedrich UE12A33B Filter
The filter is good at trapping really small dust parts and other unwanted bits as it passes through. This helps help keep the wall unit from building up too much dust and make it operate a lot better at doing its job while also filtering the air you breathe. During regular maintenance the unit filter must be exchanged or perhaps cleaned thoroughly periodically in order to keep things clean.
Simple signals the air filter is not going to last much longer
- It is highly recommended to switch out the air filter in your unit four times a year to keep the air inside clean and free of harmful dust
- The main filter looks gross and the best thing to do would be to replace it right away
- With a light behind the air filter, the light will almost not show on the other side a dirt-packed filter
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