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发表于 1-2-2020 02:58 AM
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CDC 已经讲可以了,你说的这个0.1毫米在哪里看到的?
N95 respirators are recommended for healthcare professionals by the CDC in the event they are treating patients who are infected by the new coronavirus. The N95 masks, which require testing and approval by the CDC, are tight fitting and filter out at least 95% of airborne particles.
Although N95 respirators are sold to the public, health and infectious disease experts caution against non-medical professionals wearing them. N95 masks are supposed to be fit tested to ensure they work correctly, so people who are not trained could put them on the wrong way, negating preventative effects, says Dr. Peter Rabinowitz, a director of the MetaCenter for Pandemic Disease Preparedness and Global Health Security at the University of Washington. He adds that N95 masks are difficult for people to wear effectively for prolonged periods of time.
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