Breadcrumb Home July 14, 2020 11:21 AM General Motors' facemasks earn N95 certification Tweet Share Share Email More Toggle Fullscreen Share John F. Martin for General Motors General Motors has received N95 certification for the filtering facepiece respirators made at its Warren, Mich., facility. Toggle Fullscreen Share John F. Martin for General Motor To date, the Warren, Mich., facility has delivered more than 4 million face masks and 230,000 face shields to frontline workers. Toggle Fullscreen Share John F. Martin for General Motors GM will donate some of the N95 respirators to frontline workers. Toggle Fullscreen Share The N95 masks made by GM require certain components, such as a wire nosepiece and a sonic weld that extends from the nose to the chin. General Motors Co. said its facemasks have received N95 certification from the National Institute for Occupational Safety and Health.