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Oct 14, 2009 · Collection efficiency of surgical mask filters can range from less than 10% to nearly 90% for different manufacturers masks when measured using the test parameters for NIOSH certification. Published results on the FDA required tests (if available) are
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Medical or surgical masks may help reduce the chance of spreading airborne diseases. Many wear them during flu season to avoid infecting others or being infected. They are not designed to protect the wearer from inhaling airborne bacteria or virus particles and are less effective than respirators, such as an N95 mask.
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Why should I wear a cloth mask instead of a surgical mask? coughing or sneezing are in the size range of 0.3 to 10 micrometers. Wash your hands every time you touch the mask while wearing