Here are some facts you should know:
1. They capture the really small particles down to .007 microns.
2. When you wear them, don’t worry too much about air leaking. A scientific study of 3M models on 22 Chinese people found a median fit score of 99.5%.
3. While wearing masks, people had lower blood pressure and better-regulated heart rates.
For more details, click here to read the original article: https://smartairfilters.com/en/blog/do-pollution-masks-work/
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