Vapourized hydrogen peroxide decontamination in a hospital setting inactivates SARS-CoV-2 and HCoV-229E without compromising filtration efficiency of unexpired N95 respirators
Sign Up to like & getrecommendations! Published in 2021 at "American Journal of Infection Control"
DOI: 10.1016/j.ajic.2021.07.012
Abstract: Background The COVID-19 pandemic highlighted the need for evidence-based approaches to decontamination and reuse of N95 filtering facepiece respirators (FFRs). We sought to determine whether vapourized hydrogen peroxide (VHP) reduced SARS-CoV-2 bioburden on FFRs without… read more here.
Keywords: hcov 229e; sars cov; filtration efficiency; decontamination ... See more keywords
Testing of Commercial Masks and Respirators and Cotton Mask Insert Materials using SARS-CoV-2 Virion-Sized Particulates: Comparison of Ideal Aerosol Filtration Efficiency versus Fitted Filtration Efficiency
Sign Up to like & getrecommendations! Published in 2020 at "Nano Letters"
DOI: 10.1021/acs.nanolett.0c03182
Abstract: Shortages in the availability of personal protective face masks during the COVID-19 pandemic required many to fabricate masks and filter inserts from available materials. While the base filtration efficiency of a material is of primary… read more here.
Keywords: filtration; using sars; sars cov; filtration efficiency ... See more keywords
KN95 and N95 Respirators Retain Filtration Efficiency despite a Loss of Dipole Charge during Decontamination
Sign Up to like & getrecommendations! Published in 2020 at "ACS Applied Materials & Interfaces"
DOI: 10.1021/acsami.0c17333
Abstract: N95 decontamination protocols and KN95 respirators have been described as solutions to a lack of personal protective equipment. However, there are a few material science studies that characterize the charge distribution and physical changes accompanying… read more here.
Keywords: kn95 respirators; filtration; charge; n95 respirators ... See more keywords
New insights into the standard method of assessing bacterial filtration efficiency of medical face masks
Sign Up to like & getrecommendations! Published in 2021 at "Scientific Reports"
DOI: 10.1038/s41598-021-85327-x
Abstract: Based on the current knowledge of severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) transmission, wearing a mask has been recommended during the COVID-19 pandemic. Bacterial filtration efficiency (BFE) measurements enable designing and regulating medical masks to… read more here.
Keywords: petri dishes; filtration efficiency; colony; bacterial filtration ... See more keywords
Spatially confined growth of carbon nanotubes in the pore channels of microporous ceramic supports with improved filtration efficiency.
Sign Up to like & getrecommendations! Published in 2022 at "Nanoscale"
DOI: 10.1039/d2nr03121c
Abstract: Carbon nanotubes (CNTs) with high degrees of uniformity, orientation and controlled dimensions on porous supports are highly desirable for various applications such as separation of O/W emulsions and air purification. In this work, CNTs were… read more here.
Keywords: filtration efficiency; carbon nanotubes; growth; pore channels ... See more keywords
Recharging and rejuvenation of decontaminated N95 masks
Sign Up to like & getrecommendations! Published in 2020 at "Physics of Fluids"
DOI: 10.1063/5.0023940
Abstract: N95 respirators comprise a critical part of the personal protective equipment used by frontline health-care workers and are typically meant for one-time usage. However, the recent COVID-19 pandemic has resulted in a serious shortage of… read more here.
Keywords: decontamination; recharging rejuvenation; filtration efficiency; n95 masks ... See more keywords
Performance of nanofibrous media in portable air cleaners
Sign Up to like & getrecommendations! Published in 2021 at "Aerosol Science and Technology"
DOI: 10.1080/02786826.2021.1901846
Abstract: Abstract The benefits of nanofibrous media have been extensively explored in laboratory-scale research but are less clear in real filtration applications. Thus, this study investigated the links between the size-resolved filtration efficiency of nanofibrous media… read more here.
Keywords: nanofibrous media; portable air; filtration; filtration efficiency ... See more keywords
Comparison of measurement systems for assessing number- and mass-based particle filtration efficiency
Sign Up to like & getrecommendations! Published in 2022 at "Journal of Occupational and Environmental Hygiene"
DOI: 10.1080/15459624.2022.2114596
Abstract: Abstract The particle filtration efficiency (PFE) of a respirator or face mask is one of its key properties. While the physics of particle filtration results in the PFE being size-dependent, measurement standards are specified using… read more here.
Keywords: size; particle; filtration efficiency; particle filtration ... See more keywords
Filtration performance of novel microfibrous media embedded with nanofiber flocs for aerosol particle removal.
Sign Up to like & getrecommendations! Published in 2019 at "Nanotechnology"
DOI: 10.1088/1361-6528/aaf3d4
Abstract: Ingestion and accumulation of sea salt and other impurities is a major challenge for high speed vessels, turbine engines, and other air breathing systems. The performance and reliability of filters are anticipated to be improved… read more here.
Keywords: filtration; nanofiber flocs; pressure drop; filtration performance ... See more keywords
Liquid-Immersion Reprocessing Effects on Filtration Efficiency of ‘Single-Use’ Commercial Medical Face Masks
Sign Up to like & getrecommendations! Published in 2021 at "Annals of Work Exposures and Health"
DOI: 10.1093/annweh/wxab079
Abstract: Abstract Purpose Medical masks have inferior filtration efficiency and fit to filtering facepiece respirators (FFRs) but are widely used in healthcare and the community. These masks are intended for disposal after use but in the… read more here.
Keywords: use; filtration; water; commercial medical ... See more keywords
Measuring Total Filtration Efficiency of Surgical and Community Face Masks: Impact of Mask Design Features
Sign Up to like & getrecommendations! Published in 2023 at "IEEE Transactions on Instrumentation and Measurement"
DOI: 10.1109/tim.2023.3257326
Abstract: Surgical and community face masks are used worldwide to reduce the transmission of respiratory infections in indoor environments. Performance parameters for these loose-fitting devices are mainly focused on material filtering efficiency, while, differently from face… read more here.
Keywords: filtration efficiency; face masks; face; design ... See more keywords