id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-322521-by0e6h7s	Imbrie-Moore, Annabel M.	Quadrupling the N95 Supply during the COVID-19 Crisis with an Innovative 3D-Printed Mask Adaptor	2020-07-23		.txt	text/plain	2522	118	56	We developed a solution for immediate use: a mask adaptor, outfitted with a quarter section of an N95 respirator that maintains the N95 seal standard, thereby quadrupling the N95 supply. Filter efficacy was quantitatively evaluated using a computerized N95 fit test machine (PortaCount Respirator Fit Tester, TSI Inc., Shoreview, MN, USA) that measures the concentration of particles leaking into the mask, either through the filter itself or through gaps around the mask components and in the face seal. To validate that it is possible to maintain the N95 filter efficacy standard with our novel mask adaptor, the final prototype was tested on six individuals using the PortaCount computerized N95 fit test machine. Filter efficacy of the mask was quantitatively evaluated using a computerized N95 fit test machine, confirming the use of this mask adaptor design as a valid means of extending the mask supply while maintaining the N95 standard.	./cache/cord-322521-by0e6h7s.txt	./txt/cord-322521-by0e6h7s.txt