Results 41 to 50 of about 5,790 (162)

Water-blocking Asphyxia of N95 Medical Respirator During Hot Environment Work Tasks With Whole-body Enclosed Anti-bioaerosol Suit

open access: yesSafety and Health at Work, 2023
Background: During hot environment work tasks with whole-body enclosed anti-bioaerosol suit, the combined effect of heavy sweating and exhaled hot humid air may cause the N95 medical respirator to saturate with water/sweat (i.e., water-blocking). Methods:
Jintuo Zhu   +8 more
doaj   +1 more source

Structural and functional integrity of decontaminated N95 respirators: Experimental results

open access: yesJournal of Industrial Textiles, 2022
With the recent emergence of highly transmissible variants of the novel coronavirus SARS-CoV-2, the demand for N95 respirators is expected to remain high.
Sumit Sharma   +9 more
doaj   +1 more source

Ethanol-Drying Regeneration of N95 Respirators [PDF]

open access: yes, 2020
Abstract A critical shortage of respirators, masks and other personal protective equipment (PPE) exists due to the COVID-19 pandemic. Of particular need are N95 respirators, which use meltblown microfibers of charged polypropylene. An intensive search is underway to find reliable methods to lengthen the useful life of these normally ...
Albert I. Nazeeri   +6 more
openaire   +1 more source

Development, manufacturing, and preliminary validation of a reusable half-face respirator during the COVID-19 pandemic.

open access: yesPLoS ONE, 2021
IntroductionThe COVID-19 pandemic has led to widespread shortages of N95 respirators and other personal protective equipment (PPE). An effective, reusable, locally-manufactured respirator can mitigate this problem.
Vahid Anwari   +8 more
doaj   +1 more source

Herd protection effect of N95 respirators in healthcare workers [PDF]

open access: yesJournal of International Medical Research, 2016
Objective To determine if there was herd protection conferred to unprotected healthcare workers (HCWs) by N95 respirators worn by colleagues. Methods Data were analysed from a prospective cluster randomized clinical trial conducted in ...
Chen, X, Chughtai, AA, MacIntyre, CR
openaire   +3 more sources

Performance of Composite Filters Assembled from Multiple Layers of Basic Filtration Media

open access: yesAerosol and Air Quality Research, 2020
There is a severe shortage of face masks and N95 respirators due to the current COVID-19 pandemic, particularly in countries that were not well prepared in advance. In order to help ease the supply demands of these resources, a strategy of using multiple
Peng Wang, Zhen Liu, Da-Ren Chen
doaj   +1 more source

Evaluation of a New Workplace Protection Factor–Measuring Method for Filtering Facepiece Respirator

open access: yesSafety and Health at Work, 2020
Background: This study aims to assess whether the TSI PortaCount (Model 8020) is a measuring instrument comparable with the flame photometer. This would provide an indication for the suitability of the PortaCount for determining the workplace protection ...
Chenchen Sun   +3 more
doaj   +1 more source

Performance of N95 elastomeric respirators in high humidity and high coal dust concentration environment

open access: yesInternational Journal of Mining Science and Technology, 2022
High humidity and high dust concentration in deep coal mines may severely challenge the performance of respirators worn by coal miners. This paper aims at quantitatively evaluating the respirators used in deep coal mines and providing scientific guidance
Jintuo Zhu   +5 more
doaj   +1 more source

Reusing and/or reprocessing the N95 face respirator mask or equivalent: An integrative review

open access: yesRevista Latino-Americana de Enfermagem, 2021
Objective: to analyze the scientific evidence available on the different reprocessing methods and the necessary conditions for reuse of the N95 face respirator mask or equivalent. Method: an integrative literature review.
Elucir Gir   +5 more
doaj   +3 more sources

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