Evaluation of the Effectiveness of Two Automated Room Decontamination Devices Under Real-Life Conditions
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Evaluation of the Effectiveness of Two Automated Room Decontamination Devices Under Real-Life Conditions. / Knobling, Birte; Franke, Gefion; Klupp, Eva M; Belmar Campos, Cristina; Knobloch, Johannes K.
in: FRONT PUBLIC HEALTH, Jahrgang 9, 618263, 2021.Publikationen: SCORING: Beitrag in Fachzeitschrift/Zeitung › SCORING: Zeitschriftenaufsatz › Forschung › Begutachtung
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TY - JOUR
T1 - Evaluation of the Effectiveness of Two Automated Room Decontamination Devices Under Real-Life Conditions
AU - Knobling, Birte
AU - Franke, Gefion
AU - Klupp, Eva M
AU - Belmar Campos, Cristina
AU - Knobloch, Johannes K
N1 - Copyright © 2021 Knobling, Franke, Klupp, Belmar Campos and Knobloch.
PY - 2021
Y1 - 2021
N2 - To evaluate the effectiveness of automated room decontamination devices, a common aerosolized hydrogen peroxide (aHP) as well as a recent gaseous ozone-based device, which produces the disinfectant reagent without the need of consumables, were tested under real-life conditions. Twenty-two contaminated surfaces were positioned in different areas in a patient room with adjacent bathroom and anteroom. Following the decontamination process bacteria were recovered and reduction factors were calculated after performing quantitative culture. Following the manufactures instructions, the ozone-based device displayed a bactericidal effect (log10 > 5), whereas the aHP system failed for a high bacterial burden and achieves only a complete elimination of a realistic bioburden (log10 2). After increasing the exposure time to 30 min, the aHP device also reached a bactericidal effect. Nevertheless, our results indicate, that further research and development is necessary, to get knowledge about toxicity, efficacy and safety by using in complex hospital conditions and achieve meaningful integration in cleaning procedures, to reach positive effects on disinfection performance.
AB - To evaluate the effectiveness of automated room decontamination devices, a common aerosolized hydrogen peroxide (aHP) as well as a recent gaseous ozone-based device, which produces the disinfectant reagent without the need of consumables, were tested under real-life conditions. Twenty-two contaminated surfaces were positioned in different areas in a patient room with adjacent bathroom and anteroom. Following the decontamination process bacteria were recovered and reduction factors were calculated after performing quantitative culture. Following the manufactures instructions, the ozone-based device displayed a bactericidal effect (log10 > 5), whereas the aHP system failed for a high bacterial burden and achieves only a complete elimination of a realistic bioburden (log10 2). After increasing the exposure time to 30 min, the aHP device also reached a bactericidal effect. Nevertheless, our results indicate, that further research and development is necessary, to get knowledge about toxicity, efficacy and safety by using in complex hospital conditions and achieve meaningful integration in cleaning procedures, to reach positive effects on disinfection performance.
KW - Decontamination
KW - Disinfectants/pharmacology
KW - Disinfection
KW - Humans
KW - Hydrogen Peroxide
KW - Patients' Rooms
U2 - 10.3389/fpubh.2021.618263
DO - 10.3389/fpubh.2021.618263
M3 - SCORING: Journal article
C2 - 33708756
VL - 9
JO - FRONT PUBLIC HEALTH
JF - FRONT PUBLIC HEALTH
SN - 2296-2565
M1 - 618263
ER -
