ArticleNano letters2020
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.
Article in Nano letters, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 1 of them a synthesis that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
29 citing papers in PubMed, 1 synthesis or guideline pooled it, 92 citations in OpenAlex.
- A Review of Filtration Performance of Protective Masks.International journal of environmental research and public health · 2023Pooled it
- Bio-inspired hierarchical bamboo-based air filters for efficient removal of particulate matter and toxic gases.Exploration (Beijing, China) · 2025Article
- The Application of Biomaterials for the Vaccine, Treatment, and Detection of SARS-CoV-2.ACS omega · 2024Review
- Abatement of Aerosols by Ionic Wind Extracted From Dielectric Barrier Discharge Plasma.Environmental health insights · 2024Article
- Airborne infections related to virus aerosol contamination at indoor cultural venues: Recommendations on how to minimize.Public health challenges · 2023Review
- The measuring aerosol spreading during countermeasures (MASC) study presents an automated system to investigate face mask efficacy and other aerosol countermeasures in varying environments.Scientific reports · 2022Article
- Risk assessment for long- and short-range airborne transmission of SARS-CoV-2, indoors and outdoors.PNAS nexus · 2022Article
- A critical review on the role of leakages in the facemask protection against SARS-CoV-2 infection with consideration of vaccination and virus variants.Indoor air · 2022Review
- Experimental Methods of Investigating Airborne Indoor Virus-Transmissions Adapted to Several Ventilation Measures.International journal of environmental research and public health · 2022Article
- Adherence of SARS-CoV-2 Delta variant to a surgical mask and N95 respirators.Future science OA · 2022Article
- Single-Side Superhydrophobicity in SiPolymers · 2022Article
- Adapt or die: how the pandemic made the shift from EBM to EBM+ more urgent.BMJ evidence-based medicine · 2022Article
- The emission and dynamics of droplets from human expiratory activities and COVID-19 transmission in public transport system: A review.Building and environment · 2022Review
- Optimization of COVID-19 prevention and control with low building energy consumption.Building and environment · 2022Article
- A Simple Method to Quantify Outward Leakage of Medical Face Masks and Barrier Face Coverings: Implication for the Overall Filtration Efficiency.International journal of environmental research and public health · 2022Article
- Biosafety chemistry and biosafety materials: A new perspective to solve biosafety problems.Biosafety and health · 2022Review
- How long and effective does a mask protect you from an infected person who emits virus-laden particles: By implementing one-dimensional physics-based modeling.Frontiers in public health · 2022Article
- Masks for COVID-19.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2022Review
- An upper bound on one-to-one exposure to infectious human respiratory particles.Proceedings of the National Academy of Sciences of the United States of America · 2021Article
- Polarity-Dominated Stable N97 Respirators for Airborne Virus Capture Based on Nanofibrous Membranes.Angewandte Chemie (International ed. in English) · 2021Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors at 1 institution in 1 country.
Funding
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 importance when a perfect seal is possible, ideal fit is not likely to be achieved by the average person preparing to enter a public space or even a healthcare worker without fit-testing before each shift. Our findings suggest that parameters including permeability and pliability can play a strong role in the filtration efficiency of a mask fabricated with various filter media, and that the filtration efficiency of loosely fitting masks/respirators against ultrafine particulates can drop by more than 60% when worn compared to the ideal filtration efficiency of the base material. Further, a test method using SARS-CoV-2 virion-sized silica nanoaerosols is demonstrated to assess the filtration efficiency against nanoparticulates that follow air currents associated with mask leakage.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.