California News

San Francisco Health Officer Says The Wrong Type Of N95 Mask Can Help Spread The Coronavirus

Los Angeles Times-


There’s a certain kind of N95 mask that’s actually bad to wear for public health during the coronavirus pandemic.

San Francisco’s health officer warns that N95 masks with a vent on them actually cause a person’s germs to spread, rather than containing them close to the wearer’s face. 

The warning is in the San Francisco health order, which says that any mask with a one-way valve — designed to facilitate easy exhaling — “allows droplets to be released from the mask, putting others nearby at risk.”

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