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A surgical mask, also known by other names such as a medical face mask or procedure mask, is a personal protective equipment used by healthcare professionals that serves as a mechanical barrier that interferes with direct airflow in and out of respiratory orifices (i.e. nose and mouth).
FFP standards refer to the filtering half mask classification by EN 149, a European standard of testing and marking requirements for filtering half masks. FFP standard masks (where FFP stands for filtering facepiece) cover the nose, mouth and chin and may have inhalation and/or exhalation valves.
If worn properly, a surgical mask is meant to help block large-particle droplets, splashes, sprays, or splatter that may contain viruses and bacteria, keeping them from reaching the wearer's mouth and nose. Surgical masks may also help reduce exposure of others to the wearer's saliva and respiratory secretions.
Surgical face masks (the pleated disposable three-ply masks used by medical professionals) are still the first line of defense to help stop the spread of the virus, but KN95, N95 and KF94 masks ...
Take the common disposable surgical mask, for example, which, explains a 2021 study out of the University of Denmark, is made of three layers — an outer layer of nonabsorbent material, such as ...
In December 2023 hospitals in California, Illinois, Massachusetts, New York, Washington D.C. and Wisconsin reinstated mask requirements in certain settings due to COVID variant JN.1 and rising levels of respiratory syncytial virus found in wastewater. Federal policy Calls for federal policies