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   Articles with "filtration efficiency" as a keyword



Vapourized hydrogen peroxide decontamination in a hospital setting inactivates SARS-CoV-2 and HCoV-229E without compromising filtration efficiency of unexpired N95 respirators

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recommendations! 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
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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

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recommendations! 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
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KN95 and N95 Respirators Retain Filtration Efficiency despite a Loss of Dipole Charge during Decontamination

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recommendations! 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

Wood Fiber-Based Triboelectric Material with High Filtration Efficiency and Antibacterial Properties and Its Respiratory Monitoring in Mask

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recommendations! Published in 2024 at "ACS Omega"

DOI: 10.1021/acsomega.4c01906

Abstract: Self-powered wearable electronic products have rapidly advanced in the fields of sensing and health monitoring, presenting greater challenges for triboelectric materials. The limited surface polarity and structural defects in wood fibers restrict their potential as… read more here.

Keywords: filtration; material; antibacterial properties; wood fiber ... See more keywords
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New insights into the standard method of assessing bacterial filtration efficiency of medical face masks

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recommendations! 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

Hybrid modeling for optimizing electrospun polyurethane nanofibrous membranes in air filtration applications

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recommendations! Published in 2025 at "Scientific Reports"

DOI: 10.1038/s41598-025-13159-0

Abstract: Nanofibers have gained recognition as promising materials for air filtration due to their high surface area-to-volume ratio, adjustable porosity, and exceptional mechanical properties. However, optimizing their structural characteristics to maximize filtration efficiency while minimizing pressure… read more here.

Keywords: filtration; filtration applications; hybrid modeling; air filtration ... See more keywords

Spatially confined growth of carbon nanotubes in the pore channels of microporous ceramic supports with improved filtration efficiency.

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recommendations! 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

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recommendations! 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
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Performance of nanofibrous media in portable air cleaners

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recommendations! 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

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recommendations! 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.

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recommendations! 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