Evidence map›Paper›PMID 34513009›Full record

ArticleGlobal challenges (Hoboken, NJ)2021

Navigating Performance Standards for Face Mask Materials: A Custom-Built Apparatus for Measuring Particle Filtration Efficiency.

Ryan J LaRue, Patrick Morkus, Scott Laengert, Sarah Rassenberg, Mohamad Amin Halali, John W Colenbrander, Catherine M Clase, David R Latulippe, Charles-François de Lannoy

Open access · goldAbstract read
In one paragraph

Article in Global challenges (Hoboken, NJ), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
1.8field-weighted citation impact, top 14% of its field
1 · What the graph read from 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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

9 citing papers in PubMed, 15 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 1 institution in 2 countries.

Ryan J LaRueCentre of Excellence in Protective Equipment and Materials (CEPEM) 1280 Main St. W. Hamilton ON Canada.ORCID https://orcid.org/0000-0001-9230-1350
Patrick MorkusCentre of Excellence in Protective Equipment and Materials (CEPEM) 1280 Main St. W. Hamilton ON Canada.ORCID https://orcid.org/0000-0001-5825-1089
Scott LaengertCentre of Excellence in Protective Equipment and Materials (CEPEM) 1280 Main St. W. Hamilton ON Canada.ORCID https://orcid.org/0000-0001-7106-2733
Sarah RassenbergCentre of Excellence in Protective Equipment and Materials (CEPEM) 1280 Main St. W. Hamilton ON Canada.
Mohamad Amin HalaliCentre of Excellence in Protective Equipment and Materials (CEPEM) 1280 Main St. W. Hamilton ON Canada.ORCID https://orcid.org/0000-0001-6239-5210
John W ColenbranderCentre of Excellence in Protective Equipment and Materials (CEPEM) 1280 Main St. W. Hamilton ON Canada.ORCID https://orcid.org/0000-0003-2071-4505
Catherine M ClaseCentre of Excellence in Protective Equipment and Materials (CEPEM) 1280 Main St. W. Hamilton ON Canada.ORCID https://orcid.org/0000-0002-4538-5958
David R LatulippeCentre of Excellence in Protective Equipment and Materials (CEPEM) 1280 Main St. W. Hamilton ON Canada.ORCID https://orcid.org/0000-0003-2873-0606
Charles-François de LannoyCentre of Excellence in Protective Equipment and Materials (CEPEM) 1280 Main St. W. Hamilton ON Canada.ORCID https://orcid.org/0000-0001-6451-5626
Medical Protective · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Public health agencies have recommended the community use of face masks to reduce the transmission of airborne diseases like COVID-19. Virus transmission is reduced when masks act as efficient filters, thus evaluating mask particle filtration efficiency (PFE) is essential. However, the high cost and long lead times associated with purchasing turn-key PFE systems or hiring certified laboratories hampers the testing of filter materials. There is a clear need for "custom" PFE test systems; however, the variety of standards that prescribe (medical) face mask PFE testing (e.g., ASTM International, NIOSH) vary widely in their protocols and clarity of guidelines. Herein, the development is described of an "in-house" PFE system and method for testing face masks in the context of current standards for medical masks. Pursuant to the ASTM International standards, the system uses an aerosol of latex spheres (0.1 µm nominal size) with particle concentrations upstream and downstream of the mask material measured using a laser particle analyzer. PFE measurements are obtained for a variety of common fabrics and medical masks. The approach described in this work conforms to the current standards for PFE testing while providing the flexibility to adapt to changing needs and filtration conditions.

Indexed as

aerosolsCOVID‐19face masksparticle filtration efficiencystandards

Identifiers

PMID34513009
PMCPMC8420507
OpenAlexW3191610732

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.