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Surgical face mask vs. face covering vs. N95 respirator Surgical face masks don't block small particles, but they can prevent liquid from getting on your mouth or in your nose. Getty Images

Should you wear a face mask to protect against - CBS News

The study found there wasn't much difference between the two types of masks tested, P2 respirator masks comparable to N95 masks and surgical masks. First published on January 29, 2020 / 5:20 PM

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Protesters In The Cold, Dark After Generators Removed From

Protesters camping out in Zuccotti Park are dealing with a host of issues this weekend, from colder than normal temperatures and a rare October snowfall to a lack of power after the FDNY took away

Photos: Loaded with promise in the R and D pipeline - CNET

On the high end, single lens reflex or SLR cameras with interchangeable lens offer image sharpness and programmability similar to the traditional 35mm film-type SLR cameras.

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Face coverings, N95 masks and surgical masks: Who they're

Surgical face mask vs. face covering vs. N95 respirator Surgical face masks don't block small particles, but they can prevent liquid from getting on your mouth or in your nose. Getty Images

Should you wear a face mask to protect against - CBS News

The study found there wasn't much difference between the two types of masks tested, P2 respirator masks comparable to N95 masks and surgical masks. First published on January 29, 2020 / 5:20 PM

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high quality disposable kn90 surgical face mask from china