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Effective design of barrier enclosure to contain aerosol emissions from COVID-19 patients.
Daniel, Dan; Lin, Marcus; Luhung, Irvan; Lui, Tony; Sadovoy, Anton; Koh, Xueqi; Sng, Anqi; Tran, Tuan; Schuster, Stephan C; Jun Loh, Xian; Thet, Oo Schwe; Tan, Chee Keat.
  • Daniel D; Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research, Innovis, Singapore.
  • Lin M; School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore.
  • Luhung I; Singapore Centre For Environmental Life Sciences Engineering (SCELSE, Nanyang Technological University, Singapore, Singapore.
  • Lui T; Ng Teng Fong General Hospital, Singapore, Singapore.
  • Sadovoy A; Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research, Innovis, Singapore.
  • Koh X; Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research, Innovis, Singapore.
  • Sng A; Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research, Innovis, Singapore.
  • Tran T; School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore.
  • Schuster SC; Singapore Centre For Environmental Life Sciences Engineering (SCELSE, Nanyang Technological University, Singapore, Singapore.
  • Jun Loh X; Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research, Innovis, Singapore.
  • Thet OS; School of Engineering, Ngee Ann Polytechnic, Singapore, Singapore.
  • Tan CK; Ng Teng Fong General Hospital, Singapore, Singapore.
Indoor Air ; 31(5): 1639-1644, 2021 09.
Article in English | MEDLINE | ID: covidwho-1194130
Preprint
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Semantic information from SemMedBD (by NLM)
1. COVID-19 PROCESS_OF Patients
Subject
COVID-19
Predicate
PROCESS_OF
Object
Patients
2. Patients LOCATION_OF Emission - Male genitalia finding
Subject
Patients
Predicate
LOCATION_OF
Object
Emission - Male genitalia finding
3. Emission - Male genitalia finding PART_OF Clinician
Subject
Emission - Male genitalia finding
Predicate
PART_OF
Object
Clinician
4. COVID-19 PROCESS_OF Patients
Subject
COVID-19
Predicate
PROCESS_OF
Object
Patients
5. Patients LOCATION_OF Emission - Male genitalia finding
Subject
Patients
Predicate
LOCATION_OF
Object
Emission - Male genitalia finding
6. Emission - Male genitalia finding PART_OF Clinician
Subject
Emission - Male genitalia finding
Predicate
PART_OF
Object
Clinician
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%.
Subject(s)
Keywords

Full text: Available Collection: International databases Database: MEDLINE Main subject: Infection Control / Air Pollution, Indoor / COVID-19 Limits: Humans Language: English Journal: Indoor Air Journal subject: Environmental Health Year: 2021 Document Type: Article Affiliation country: Ina.12828

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Full text: Available Collection: International databases Database: MEDLINE Main subject: Infection Control / Air Pollution, Indoor / COVID-19 Limits: Humans Language: English Journal: Indoor Air Journal subject: Environmental Health Year: 2021 Document Type: Article Affiliation country: Ina.12828