Reduced personal exposure to airborne cross-infection using wearable exhaust ventilation

Mariya P. Bivolarova, Wojciech Kierat, Signe Hvidkjær, Kathrine-Amalie Stengade, Trine Illum, Stine Boe Gad, Arsen K. Melikov

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

12 Downloads (Pure)

Abstract

This study aimed to explore an alternative solution for protection against cross-infection. Exposure reduction to exhaled airborne contaminants by wearing an exhaust nozzle was studied. Experiments were performed in a full-scale test room (64.8 m3) equipped with a small section of a stadium tribune with six seats. Two breathing thermal manikins and four heated dummies were placed on the tribune. The manikins were equipped with artificial lungs simulating a realistic breathing cycle and respiratory flow. One of the breathing manikins was used to mimic a sick person having an infectious respiratory disease. The exhaled air of the “infecting person” was mixed with tracer gas to imitate pathogens. Four types of air exhaust nozzles were studied for their efficiency to reduce exposure to exhaled contaminants. The nozzle was positioned in front of the mouth of the infecting person. The test room was ventilated with mixing background ventilation. The use of the exhaust nozzle resulted in cleaner air in the room and at the breathing zone of the simulated occupants compared to only using dilution by the background ventilation. The novel device has the potential to capture exhaled air and reduce airborne cross-infection in densely occupied sitting areas.
Original languageEnglish
Title of host publicationProceedings of 11th International Conference on Indoor Air Quality, Ventilation & Energy Conservation in Buildings
Number of pages5
Volume396
PublisherEDP Sciences
Publication date2023
Article number02032
DOIs
Publication statusPublished - 2023
Event11th International Conference on Indoor Air Quality, Ventilation & Energy Conservation in Buildings - Tokyo, Japan
Duration: 20 May 202323 May 2023
Conference number: 11

Conference

Conference11th International Conference on Indoor Air Quality, Ventilation & Energy Conservation in Buildings
Number11
Country/TerritoryJapan
CityTokyo
Period20/05/202323/05/2023
SeriesE3S Web of Conferences
ISSN2267-1242

Fingerprint

Dive into the research topics of 'Reduced personal exposure to airborne cross-infection using wearable exhaust ventilation'. Together they form a unique fingerprint.

Cite this