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Nonthermal plasma air disinfection for the inactivation of airborne microorganisms in an experimental chamber and indoor air.
- Source :
-
Journal of Applied Microbiology . Apr2024, Vol. 135 Issue 4, p1-7. 7p. - Publication Year :
- 2024
-
Abstract
- Aims Airborne transmission of diseases presents a serious threat to human health, so effective air disinfection technology to eliminate microorganisms in indoor air is very important. This study evaluated the effectiveness of a non-thermal plasma (NTP) air disinfector in both laboratory experiments and real environments. Methods and results An experimental chamber was artificially polluted with a bioaerosol containing bacteria or viruses. Additionally, classroom environments with and without people present were used in field tests. Airborne microbial and particle concentrations were quantified. A 3.0 log10 reduction in the initial load was achieved when a virus-containing aerosol was disinfected for 60 min and a bacteria-containing aerosol was disinfected for 90 min. In the field test, when no people were present in the room, NTP disinfection decreased the airborne microbial and particle concentrations (P  < 0.05). When people were present in the room, their constant activity continuously contaminated the indoor air, but all airborne indicators decreased (P  < 0.05) except for planktonic bacteria (P =  0.094). Conclusions NTP effectively inactivated microorganisms and particles in indoor air. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 13645072
- Volume :
- 135
- Issue :
- 4
- Database :
- Academic Search Index
- Journal :
- Journal of Applied Microbiology
- Publication Type :
- Academic Journal
- Accession number :
- 177016903
- Full Text :
- https://doi.org/10.1093/jambio/lxae078