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10.1136/bmjgh-2020-003110 http://scihub22266oqcxt.onion/10.1136/bmjgh-2020-003110 33087392!7580049!33087392     free     free     free Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 265.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534       BMJ+Glob+Health 2020 ; 5 (10): ä Nephropedia Template TP {{tp|p=33087392|t=2020. Reusability of filtering facepiece respirators after decontamination through drying and germicidal UV irradiation |pdf=|usr=}}{{33087392}} gab.com Text Reusability of filtering facepiece respirators after decontamination through drying and germicidal UV irradiation JO: BMJ Glob Health http://www.kidney.de/pget.php?&tw=1&pmid=33087392 #FOAvip INTRODUCTION: During pandemics, such as the SARS-CoV-2, filtering facepiece respirators plays an essential role in protecting healthcare personnel. The recycling of respirators is possible in case of critical shortage, but it raises the question of the effectiveness of decontamination as well as the performance of the reused respirators. METHOD: Disposable respirators were subjected to ultraviolet germicidal irradiation (UVGI) treatment at single or successive doses of 60 mJ/cm(2) after a short drying cycle (30 min, 70 degrees C). The germicidal efficacy of this treatment was tested by spiking respirators with two staphylococcal bacteriophages (vB_HSa_2002 and P66 phages). The respirator performance was investigated by the following parameters: particle penetration (NaCl aerosol, 10-300 nm), scanning electron microscopy (SEM), Fourier-transform infrared spectroscopy (FTIR), differential scanning calorimetry and mechanical tensile tests. RESULTS: No viable phage particles were recovered from any of the respirators after decontamination (log reduction in virus titre >3), and no reduction in chemical or physical properties (SEM, particle penetrations <5%-6%) were observed. Increasing the UVGI dose 10-fold led to chemical alterations of the respirator filtration media (FTIR) but did not affect the physical properties (particle penetration), which was unaltered even at 3000 mJ/cm(2) (50 cycles). When respirators had been used by healthcare workers and undergone decontamination, they had particle penetration significantly greater than never donned respirators. CONCLUSION: This decontamination procedure is an attractive method for respirators in case of shortages during a SARS pandemic. A successful implementation requires a careful design and particle penetration performance control tests over the successive reuse cycles. Twit Text FOAVip Reusability of filtering facepiece respirators after decontamination through drying and germicidal UV irradiation ????BMJ Glob Health http://www.kidney.de/pget.php?&tw=1&pmid=33087392 #FOAvip Twit Text # Free Paper on # # # # # LINK http://www.kidney.de/pget.php?&tw=1&pmid=33087392 #FOAvip English Wikipedia <ref>{{Cite pmid|33087392}}</ref> Reusability of filtering facepiece respirators after decontamination through drying and germicidal UV irradiation #MMPMID33087392 Vernez D; Save J; Oppliger A; Concha-Lozano N; Hopf NB; Niculita-Hirzel H; Resch G; Michaud V; Dorange-Pattoret L; Charriere N; Batsungnoen K; Suarez G BMJ Glob Health 2020[Oct]; 5 (10): ä PMID33087392show ga INTRODUCTION: During pandemics, such as the SARS-CoV-2, filtering facepiece respirators plays an essential role in protecting healthcare personnel. The recycling of respirators is possible in case of critical shortage, but it raises the question of the effectiveness of decontamination as well as the performance of the reused respirators. METHOD: Disposable respirators were subjected to ultraviolet germicidal irradiation (UVGI) treatment at single or successive doses of 60 mJ/cm(2) after a short drying cycle (30 min, 70 degrees C). The germicidal efficacy of this treatment was tested by spiking respirators with two staphylococcal bacteriophages (vB_HSa_2002 and P66 phages). The respirator performance was investigated by the following parameters: particle penetration (NaCl aerosol, 10-300 nm), scanning electron microscopy (SEM), Fourier-transform infrared spectroscopy (FTIR), differential scanning calorimetry and mechanical tensile tests. RESULTS: No viable phage particles were recovered from any of the respirators after decontamination (log reduction in virus titre >3), and no reduction in chemical or physical properties (SEM, particle penetrations <5%-6%) were observed. Increasing the UVGI dose 10-fold led to chemical alterations of the respirator filtration media (FTIR) but did not affect the physical properties (particle penetration), which was unaltered even at 3000 mJ/cm(2) (50 cycles). When respirators had been used by healthcare workers and undergone decontamination, they had particle penetration significantly greater than never donned respirators. CONCLUSION: This decontamination procedure is an attractive method for respirators in case of shortages during a SARS pandemic. A successful implementation requires a careful design and particle penetration performance control tests over the successive reuse cycles. |*Equipment Reuse[MESH] |*Respiratory Protective Devices[MESH] |*Ultraviolet Rays[MESH] |Betacoronavirus[MESH] |COVID-19[MESH] |Coronavirus Infections/prevention & control[MESH] |Decontamination/*methods[MESH] |Equipment Contamination/*prevention & control[MESH] |Equipment Failure Analysis[MESH] |Humans[MESH] |Infection Control/methods[MESH] |Materials Testing[MESH] |Pandemics/prevention & control[MESH] |Pneumonia, Viral/prevention & control[MESH]Reusability of filtering facepiece respirators after decontamination t(epmc).pdf DeepDyve Pubget Overpricing