3 years ago

What is the difference between an N95 mask and a surgical mask?

1 answer:

3 0

Surgical masks are not designed for use as particulate respirators and do not provide as much respiratory protection as an N95 respirator. ... Most surgical masks do not effectively filter small particles from the air and do not prevent leakage around the edge of the mask when the user inhales.

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the mathmatical system of perceptive that was not used for almost 1000 years after the fall of rome when did artist use it again

Nesterboy [21]

During the Renaissance.

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3 years ago

The jet stream occurs in the mesosphere. true or false

Nostrana [21]

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