![We have an air purifier in our house because we live in between a freeway and railroad tracks. We put a new filter in today. We've been here 7 months. : r/WTF We have an air purifier in our house because we live in between a freeway and railroad tracks. We put a new filter in today. We've been here 7 months. : r/WTF](http://i.imgur.com/1SRoMdD.png)
We have an air purifier in our house because we live in between a freeway and railroad tracks. We put a new filter in today. We've been here 7 months. : r/WTF
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Is an $800 purifier best to clean your home's air? Marketplace tested 5 top brands and their claims | CBC News
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