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Haier ESA3189-L Filter
The filter in the wall unit is good at removing microscopic dust and other small elements as it is being forced through the system. This simple filter can keep the unit clean and make it work much more efficient while also filtering the dust out of the air you breathe all day. During regular maintenance the filter should be simply replaced or perhaps cleaned thoroughly periodically depending on how much you use it.
Indications the air filter is in need of replacing
- The filter looks gray or brown and maybe should be replaced as soon as you can
- It is suggested to replace the filter four times a year to help keep the air fresh and make the unit run more efficient
- Sunlight is unable to show through the filter
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