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10.1063/5.0015983 http://scihub22266oqcxt.onion/10.1063/5.0015983 33261462!ä!33261462 Deprecated: Implicit conversion from float 227.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 227.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 227.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 227.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534       Rev+Sci+Instrum 2020 ; 91 (11): 114101 Nephropedia Template TP {{tp|p=33261462|t=2020. An apparatus for rapid and nondestructive comparison of masks and respirators |pdf=|usr=}}{{33261462}} gab.com Text An apparatus for rapid and nondestructive comparison of masks and respirators JO: Rev Sci Instrum http://www.kidney.de/pget.php?&tw=1&pmid=33261462 #FOAvip The SARS-CoV-2 global pandemic has produced widespread shortages of certified air-filtering personal protection equipment and an acute need for rapid evaluation of breathability and filtration efficiency of proposed alternative solutions. Here, we describe experimental efforts to nondestructively quantify three vital characteristics of mask approaches: breathability, material filtration effectiveness, and sensitivity to fit. We focus on protection against aqueous aerosols >0.3 mum using off-the-shelf particle, flow, and pressure sensors, permitting rapid comparative evaluation of these three properties. We present and discuss both the pressure drop and the particle penetration as a function of flow to permit comparison of relative protection for a set of proposed filter and mask designs. The design considerations of the testing apparatus can be reproduced by university laboratories and medical facilities and used for rapid local quality control of respirator masks that are of uncertified origin, monitoring the long-term effects of various disinfection schemes and evaluating improvised products not designed or marketed for filtration. Twit Text FOAVip An apparatus for rapid and nondestructive comparison of masks and respirators ????Rev Sci Instrum http://www.kidney.de/pget.php?&tw=1&pmid=33261462 #FOAvip Twit Text # Free Paper on # # # # # LINK http://www.kidney.de/pget.php?&tw=1&pmid=33261462 #FOAvip English Wikipedia <ref>{{Cite pmid|33261462}}</ref> An apparatus for rapid and nondestructive comparison of masks and respirators #MMPMID33261462 Sheets D; Shaw J; Baldwin M; Daggett D; Elali I; Curry EB; Sochnikov I; Hancock JN Rev Sci Instrum 2020[Nov]; 91 (11): 114101 PMID33261462show ga The SARS-CoV-2 global pandemic has produced widespread shortages of certified air-filtering personal protection equipment and an acute need for rapid evaluation of breathability and filtration efficiency of proposed alternative solutions. Here, we describe experimental efforts to nondestructively quantify three vital characteristics of mask approaches: breathability, material filtration effectiveness, and sensitivity to fit. We focus on protection against aqueous aerosols >0.3 mum using off-the-shelf particle, flow, and pressure sensors, permitting rapid comparative evaluation of these three properties. We present and discuss both the pressure drop and the particle penetration as a function of flow to permit comparison of relative protection for a set of proposed filter and mask designs. The design considerations of the testing apparatus can be reproduced by university laboratories and medical facilities and used for rapid local quality control of respirator masks that are of uncertified origin, monitoring the long-term effects of various disinfection schemes and evaluating improvised products not designed or marketed for filtration. |*Masks/standards[MESH] |*Respiratory Protective Devices/standards[MESH] |*SARS-CoV-2[MESH] |Aerosols[MESH] |Air Microbiology[MESH] |Air Movements[MESH] |Air Pressure[MESH] |COVID-19/*prevention & control/transmission[MESH] |Equipment Design/standards[MESH] |Face[MESH] |Filtration/instrumentation[MESH] |Humans[MESH] |Materials Testing/instrumentation/standards[MESH] |N95 Respirators/standards[MESH] |Pandemics/*prevention & control[MESH]An apparatus for rapid and nondestructive comparison of masks and resp(epmc).pdf DeepDyve Pubget Overpricing