Evidence map›Paper›PMID 35681957›Full record

ArticleInternational journal of environmental research and public health2022

Do They Really Work? Quantifying Fabric Mask Effectiveness to Improve Public Health Messaging.

Charles Freeman, Reuben Burch, Lesley Strawderman, Catherine Black, David Saucier, Jaime Rickert, John Wilson, Holli Seitz, Jeffrey Stull

Open access · goldAbstract read
In one paragraph

Article in International journal of environmental research and public health, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
1.1field-weighted citation impact, top 23% 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

4 citing papers in PubMed, 7 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Constant vs. cyclic flow when testing face masks and respirators as source control devices for simulated respiratory aerosols.Aerosol science and technology : the journal of the American Association for Aerosol Research · 2023
    Article
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 1 country.

Charles FreemanSchool of Human Sciences, Mississippi State University, Starkville, MS 39762, USA.
Reuben BurchDepartment of Industrial & Systems Engineering, Mississippi State University, Starkville, MS 39762, USA.ORCID 0000-0003-2944-1945
Lesley StrawdermanDepartment of Industrial & Systems Engineering, Mississippi State University, Starkville, MS 39762, USA.ORCID 0000-0002-4742-6610
Catherine BlackSchool of Human Sciences, Mississippi State University, Starkville, MS 39762, USA.ORCID 0000-0002-3990-5873
David SaucierHuman Factors & Athlete Engineering, Center for Advanced Vehicular Systems, Mississippi State University, Starkville, MS 39759, USA.
Jaime RickertInstitute for Clean Energy and Technology, Mississippi State University, Starkville, MS 39759, USA.
John WilsonInstitute for Clean Energy and Technology, Mississippi State University, Starkville, MS 39759, USA.
Holli SeitzDepartment of Communication, Mississippi State University, Starkville, MS 39762, USA.
Jeffrey StullInternational Personal Protection, Incorporated, Austin, TX 78709, USA.
Mississippi State University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The purpose of this study is to compare masks (non-medical/fabric, surgical, and N95 respirators) on filtration efficiency, differential pressure, and leakage with the goal of providing evidence to improve public health messaging. Masks were tested on an anthropometric face filtration mount, comparing both sealed and unsealed. Overall, surgical and N95 respirators provided significantly higher filtration efficiency (FE) and differential pressure (dP). Leakage comparisons are one of the most significant factors in mask efficiency. Higher weight and thicker fabric masks had significantly higher filtration efficiency. The findings of this study have important implications for communication and education regarding the use of masks to prevent the spread of COVID-19 and other respiratory illnesses, specifically the differences between sealed and unsealed masks. The type and fabric of facial masks and whether a mask is sealed or unsealed has a significant impact on the effectiveness of a mask. Findings related to differences between sealed and unsealed masks are of critical importance for health care workers. If a mask is not completely sealed around the edges of the wearer, FE for this personal protective equipment is misrepresented and may create a false sense of security. These results can inform efforts to educate health care workers and the public on the importance of proper mask fit.

Indexed as

COVID-19Respiratory Protective DevicesHumansMasksPersonal Protective EquipmentPublic HealthTextilesbarrier face coveringCOVID-19filtration efficiencyhealthcare workers

Identifiers

PMID35681957
PMCPMC9180754
OpenAlexW4281560789

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.