Ozone disinfection efficiency against airborne microorganisms in hospital environment: a case study

Autor: Piletić Kaća, Linšak Dijana Tomić, Kovač Bruno, Mežnarić Silvestar, Repustić Marin, Radmanović-Skrbić Martina, Gobin Ivana
Jazyk: English<br />Croatian
Rok vydání: 2022
Předmět:
Zdroj: Arhiv za Higijenu Rada i Toksikologiju, Vol 73, Iss 4, Pp 270-276 (2022)
Druh dokumentu: article
ISSN: 1848-6312
DOI: 10.2478/aiht-2022-73-3651
Popis: Even though ozone has shown its potential for air disinfection in hospital environment, its more frequent use has earned attention only with the COVID-19 pandemic due to its proven antimicrobial effect and low cost of production. The aim of this study was to determine its antimicrobial efficiency against the most common bacterial species in a real-life setting, that is, in the air of one postoperative room of the General Hospital Dr Ivo Pedišić (Sisak, Croatia). Air was sampled for aiborne bacteria before and after treatment with the ozone concentration of 15.71 mg/m3 for one hour. The most dominant Gram-positive bacteria of the genera Micrococcus, Staphylococcus, and Bacillus were reduced by 33 %, 58 %, and 61 %, respectively. The genus Micrococcus proved to be the most resistant. Considering our findings, we recommend longer air treatment with higher ozone concentrations in combination with mechanical cleaning and frequent ventilation.
Databáze: Directory of Open Access Journals