id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-297021-fzfl08qa	Manomaipiboon, Anan	The new silicone N99 half-piece respirator, VJR-NMU N99: A novel and effective tool to prevent COVID-19	2020-07-23		.txt	text/plain	3108	181	57	To meet the need for FFRs during a pandemic, Navamindradhiraj University has invented a new model of silicone N99 facepiece respirator by using the silicone mask and the HEPA filter normally used in the operating room (CareStar or SafeStar, Draeger, Germany) (Fig 1) . As required by Occupational Safety and Health Administration OSHA) [7] , the half piece respirators need to pass the fit test to identify those individuals who do not achieve a sufficiently good fit necessary for adequate protection. The study was conducted to achieve two specific research objectives: (1) to investigate the fit characteristics of the novel silicone mask and whether the strap adjustment can help reduce the face-seal leakage; and (2) to determine the level of performance by measuring the inward leakage of the generated aerosols with a new filter and a used filter (for up to 24 h).	./cache/cord-297021-fzfl08qa.txt	./txt/cord-297021-fzfl08qa.txt