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According to reports released by the World Bank and the Chinese government China is one of the countries with the highest levels of PM2 5 in the world 16 of the world's 20 cities with the highest air pollution are in China A fifth of Chinese people in urban areas breathes air that's heavily polluted Because of this the Chinese government has been actively putting in measures to

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PM 2 5 Vs N95 Vs N99: What's The Best Face Mask For

Finder recommend buying N95 face masks through clinicalsuppliesusa(3M™ in-stock Shipping from San Diego But made in China don't click if you have some concerns about this ) If N95 is sold out or you're in a limited budget try KN95 you can get them

Surgical Masks Surprisingly Effective Against PM2 5

The left-most mask is a 3M N95 mask the "N95 mask2″ is a Moldex N95 and the right-most mask is a cheap surgical mask bought from a street vendor in Kathmandu The surgical mask blocked about 60% of 03 micron particles and over 90% of 1 micron and 2 5 micron particles

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Respirators meet the CDC Guidelines for Mycobacterium tuberculosis exposure control They are certified by NIOSH as N95's and designed to provide a secure face-to-respirator seal This seal helps reduce the wearer's exposure to airborne particles making them appropriate for protection from laser and electrocautery plume

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For respirator masks China uses the KN standard (e g KN95) and the US uses the N standard (e g N95) Read more: what's the difference between KN95 and N95 masks Requirements Are Lowest for Single Use Face Masks The standard with the lowest requirements on filtration effectiveness are the single use face masks (not to be confused with surgical masks) Surgical masks have higher

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