Amazon.com: pm2.5 face mask- pm2.5 Maske Aktivkohlefiltergewebe ,Mouth Mask,Aniwon 3 Pack Anti Dust Pollution Mask with 6 Pcs Activated Carbon Filter Insert Fashion Cotton Face Mask PM2.5 Dust Mask for Men Women. 4.0 out of 5 stars 5,755. $12.99 $ 12. 99 ($12.99/Count) Get it as soon as Tue, Jan 12. FREE Shipping on orders over $25 shipped by Amazon.Surgical Masks Surprisingly Effective Against PM2.5 ...Bottom Line: Surgical Masks Surprisingly Effective Against PM2.5. Scientific fit tests and particle penetration tests find that surgical masks as cheap as 1 RMB (US$0.15) block between 60-90% of particles. That includes even really small particles and even while a person is actually wearing it.



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