Reducing the Effectiveness of Ward Particulate Matter, Bacteria and Influenza Virus by Combining Two Complementary Air Purifiers.
Int J Environ Res Public Health
; 19(16)2022 08 22.
Article
in English
| MEDLINE | ID: covidwho-2023678
ABSTRACT
Air purifiers should pay much attention to hospital-associated infections, but the role of a single air purifier is limited. The goal of this study was to evaluate the effectiveness of the combined application of the nonequilibrium positive and negative oxygen ion purifier (PNOI) and the high-efficiency particulate air filter (HEPA) on a complex, polluted environment. Two of the better performing purifiers were selected before the study. The efficacy of their use alone and in combination for purification of cigarette particulate matter (PM), Staphylococcus albicans, and influenza virus were then evaluated under a simulated contaminated ward. PNAI and HEPA alone are deficient. However, when they were combined, they achieved 98.44%, 99.75%, and 100% 30 min purification rates for cigarette PM, S. albus, and influenza virus, respectively. The purification of pollution of various particle sizes and positions was optimized and reduced differentials, and a subset of airborne influenza viruses is inactivated. Furthermore, they were superior to ultraviolet disinfection for microbial purification in air. This work demonstrates the strong purification capability of the combined application of these two air purifiers for complex air pollution, which provides a new idea for infection control in medical institutions.
Keywords
Full text:
Available
Collection:
International databases
Database:
MEDLINE
Main subject:
Orthomyxoviridae
/
Air Pollution, Indoor
/
Air Pollutants
/
Air Filters
Type of study:
Experimental Studies
Language:
English
Year:
2022
Document Type:
Article
Affiliation country:
Ijerph191610446
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