N-95 Rated Face Mask with Exhalation Valves (IMAGE)

Florida Atlantic University

N-95 Rated Face Mask with Exhalation Valves

Caption

Researchers also tested an N-95 rated face mask with exhalation valves and found the exhalation port significantly reduced the effectiveness of the mask as a means of source control, as a large number of droplets passed through the valve unfiltered and unhindered.

Credit

Florida Atlantic University's College of Engineering and Computer Science (for media use only, not for commercial use)

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Credit: Florida Atlantic University's College of Engineering and Computer Science (for media use only, not for commercial use)

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