Evidence map›Paper›PMID 33876847›Full record

ArticleIndoor air2021

Effective design of barrier enclosure to contain aerosol emissions from COVID-19 patients.

Dan Daniel, Marcus Lin, Irvan Luhung, Tony Lui, Anton Sadovoy, Xueqi Koh, Anqi Sng, Tuan Tran, Stephan C Schuster, Xian Jun Loh and 2 more

Open access · greenAbstract read
In one paragraph

Article in Indoor air, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
2.3field-weighted citation impact, top 11% 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

8 citing papers in PubMed, 18 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

12 authors at 5 institutions in 1 country.

Dan DanielInstitute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research, Innovis, Singapore.
Marcus LinSchool of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore.
Irvan LuhungSingapore Centre For Environmental Life Sciences Engineering (SCELSE, Nanyang Technological University, Singapore, Singapore.
Tony LuiNg Teng Fong General Hospital, Singapore, Singapore.
Anton SadovoyInstitute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research, Innovis, Singapore.
Xueqi KohInstitute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research, Innovis, Singapore.
Anqi SngInstitute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research, Innovis, Singapore.
Tuan TranSchool of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore.
Stephan C SchusterSingapore Centre For Environmental Life Sciences Engineering (SCELSE, Nanyang Technological University, Singapore, Singapore.
Xian Jun LohInstitute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research, Innovis, Singapore.
Oo Schwe ThetSchool of Engineering, Ngee Ann Polytechnic, Singapore, Singapore.
Chee Keat TanNg Teng Fong General Hospital, Singapore, Singapore.
Agency for Science, Technology and Research · SGNanyang Technological University · SGNg Teng Fong General Hospital · SGNgee Ann Polytechnic · SGSingapore Centre for Environmental Life Sciences Engineering · SG

Funding

A*STAR SC25/20-8R1640National Medical Research council, Singapore MOH-000411
6 · The paper itself

Abstract

Facing shortages of personal protective equipment, some clinicians have advocated the use of barrier enclosures (typically mounted over the head, with and without suction) to contain aerosol emissions from coronavirus disease 2019 (COVID-19) patients. There is, however, little evidence for its usefulness. To test the effectiveness of such a device, we built a manikin that can expire micron-sized aerosols at flow rates close to physiological conditions. We then placed the manikin inside the enclosure and used a laser sheet to visualize the aerosol leaking out. We show that with sufficient suction, it is possible to effectively contain aerosol from the manikin, reducing aerosol exposure outside the enclosure by 99%. In contrast, a passive barrier without suction only reduces aerosol exposure by 60%.

Indexed as

Air Pollution, IndoorCOVID-19HumansInfection ControlModels, AnatomicSARS-CoV-2Suctionaerosolairborne transmissionsbarrier enclosureCOVID-19infection control

Identifiers

PMID33876847
PMCPMC8250690
OpenAlexW3154261241

What OpenQuestion holds

Textmetadata
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.