ArticlePhysics of fluids (Woodbury, N.Y. : 1994)2022
Modeling the filtration efficiency of a woven fabric: The role of multiple lengthscales.
Article in Physics of fluids (Woodbury, N.Y. : 1994), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
What it found
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The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
5 citing papers in PubMed.
- Simulation-Oriented Rule-Driven Geometric Modeling of Polymer-Fiber Weft-Knitted Structures for Moisture-Transfer Prediction.Polymers · 2026Article
- Single-Layer and Double-Layer Filtration Materials Based on Polyvinylidene Fluoride-Co-hexafluoropropylene Nanofibers Coated on Melamine Microfibers.ACS applied nano materials · 2023Article
- Filtering Efficiency of Sustainable Textile Materials Applied in Personal Protective Face Mask Production during Pandemic.Materials (Basel, Switzerland) · 2023Article
- Association between COVID-19 and consistent mask wearing during contact with others outside the household-A nested case-control analysis, November 2020-October 2021.Influenza and other respiratory viruses · 2023Article
- Modeling the filtration efficiency of a woven fabric: The role of multiple lengthscales.Physics of fluids (Woodbury, N.Y. : 1994) · 2022Article
Corrections and comments
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
During the COVID-19 pandemic, many millions have worn masks made of woven fabric to reduce the risk of transmission of COVID-19. Masks are essentially air filters worn on the face that should filter out as many of the dangerous particles as possible. Here, the dangerous particles are the droplets containing the virus that are exhaled by an infected person. Woven fabric is unlike the material used in standard air filters. Woven fabric consists of fibers twisted together into yarns that are then woven into fabric. There are, therefore, two lengthscales: the diameters of (i) the fiber and (ii) the yarn. Standard air filters have only (i). To understand how woven fabrics filter, we have used confocal microscopy to take three-dimensional images of woven fabric. We then used the image to perform lattice Boltzmann simulations of the air flow through fabric. With this flow field, we calculated the filtration efficiency for particles a micrometer and larger in diameter. In agreement with experimental measurements by others, we found that for particles in this size range, the filtration efficiency is low. For particles with a diameter of 1.5
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Registered trials
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