Face seal leakage of half masks and surgical masks
Description
Abstract: “The filtration efficiency of the filter materials was good, over 95%, for particles above 5 micron in diameter but great variation existed for smaller particles.”
AZCHD Comment: If the masks are only reliable for particles above 5 microns, how can it be effective for Coronavirus which is only 0.125 microns?
Entry Details
Organization:
National Institutes of Health (NIH) - National Center for Biotechnology Information
Publication:
PubMed
Author(s) / Speaker(s):
T Tuomi
Posted Date:
June 4, 1985