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Friedrich SM18 Filter
The filter is designed to be good at filtering out dust and other tiny bits as it passes through. This helps keep the unit dust-free and make it run a lot better at doing its job while also cleaning the air you breathe. Because it is really easy to do, the filter should probably be replaced or perhaps cleaned thoroughly a few times a year depending on how much you use it.
Easy warnings your main filter will soon need to be replaced
- The system air filter looks dirty and replacing it would be best real soon
- Professionals have recommended to swap out your air filter every three months in order to keep the air free from too much dust
- Sunlight is unable to shine on the opposite side of a completely clogged filter
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If you are going to be buying or ordering a replacement filter for your Friedrich SM18 do your best and double check the model number and also make a visual comparison in order to be sure the right filter is being ordered. Installation of the filter is a piece of cake assuming you have the know-how and have the proper tools to get it done.
Feel free to download your manual for help.
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