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During the COVID-19 pandemic, the mask and respirator market rapidly grew, along with counterfeit respirators. [1] NIOSH, on behalf of the Department of Health and Human Services, filed a trademark application on June 17, 2020, for various 42 CFR 84 trademarks, including the N95, allowing NIOSH to enforce rules on counterfeit masks outside of rules defined in 42 CFR 84.
An N95 respirator is a disposable filtering facepiece respirator or reusable elastomeric respirator filter that meets the U.S. National Institute for Occupational Safety and Health (NIOSH) N95 standard of air filtration, filtering at least 95% of airborne particles that have a mass median aerodynamic diameter of 0.3 micrometers under 42 CFR 84, effective July 10, 1995.
N99 or N-99 may refer to: Brandywine Airport, in West Goshen Township, Pennsylvania, United States; formerly assigned FAA LID N99; HMS Upholder (N99), a submarine of the Royal Navy; N99 motorway (Netherlands) Nebraska Highway 99, in the United States; NIOSH N99, a rating for respirators and surgical masks
Dec. 18—MultiCare Health System reinstated its mask mandate Monday in Spokane-area facilities , including Deaconess and Valley hospitals, based on the past week's rise in respiratory illnesses.
A surgical mask may not block all particles, due to the lack of fit between the surface of the face mask and the face. [46] The filtration efficiency of a surgical mask ranges between 10% and 90% for any given manufacturer, when measured using tests required for NIOSH certification.