Brilliant article by Smart Air, original author = Thomas

Can pollution masks actually stop pollution?

The simple answer is yes.

Even a cotton handkechief stops 26% of the particles.   So for all those people asking me.. ‘but does it really do anything?’

The answer is yes, however of course you’re not completely safe, but that being said…it’s still better than nothing.

Anyway, check out his article, you have to scroll down for the English but its very interesting.

https://mp.weixin.qq.com/s?__biz=MzA5MzQ0NDYyNA==&mid=2650750921&idx=1&sn=51d8dadbf72ef48d7b3c28eb73a6e983&chksm=885650b6bf21d9a0193871c13c80414560ced6e804c920219461ff4cbf3bd1e2a62d551e36b7&mpshare=1&scene=1&srcid=1223ZPdkIU4Ws9dwGbMP2JwP&key=564c3e9811aee0ab727292b0feecdcca65d559218e756d6d9a1483196f848543911db3106f0b7849373aae6c5453328548a41ac893da4bb55f981904ca23220bf38ea5d326c46e2cdce38190411ba906&ascene=0&uin=OTUzNDIzNjYy&devicetype=iMac+MacBookPro12%2C1+OSX+OSX+10.12.2+build(16C67)&version=12010210&nettype=WIFI&fontScale=100&pass_ticket=9jNLZ1tAxySZWRDPZzj6bXqHhML4dMrIlWSFuCSJW%2FxaSWG6gqdLjSPsX7JTa5mE