Razer mask is 5 times the price of Air+ mask... so people do expect some kind of official certification from the leading standard. I mean it looks to me some china made respirator with LED light slapped on it... but it is like 3 times the price of an actual 3M respirator... but 3M respirator got one glaring issue.. the expulsion of breathe is not filter at all.. that is why I stop wearing it..
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