Can the HEPA Filter Be Washed?

We conducted tests using 4 used HEPA filters and found that washing the filters reduces its effectiveness. According to the data, we should never wash our HEPA filters. You can check out the data here: https://smartairfilters.com/en/blog/wash-clean-hepa/


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Smart Air is a social enterprise that creates simple, no-nonsense air purifier and provides free education to protect people’s health from the effects of air pollution. We are proud to be the only certified B-Corp dedicated to fighting air pollution.