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Assessment of the impact of multiple mild-steam decontaminations on the protection performance of disposable KN95 filtering facepiece respirators

Zentgraf, Florian ; Johe, Pascal ; Hoche, Holger ; Göckel, Bernd ; Becker, S. ; Oechsner, Matthias ; Dreizler, Andreas (2021):
Assessment of the impact of multiple mild-steam decontaminations on the protection performance of disposable KN95 filtering facepiece respirators. (Publisher's Version)
In: Infection Prevention in Practice, 3 (2), Elsevier, ISSN 2590-0889,
DOI: 10.26083/tuprints-00019343,
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Item Type: Article
Origin: Secondary publication via sponsored Golden Open Access
Status: Publisher's Version
Title: Assessment of the impact of multiple mild-steam decontaminations on the protection performance of disposable KN95 filtering facepiece respirators
Language: English
Abstract:

The COVID-19 pandemic caused tremendous supply bottlenecks of single-use filtering facepiece respirators (FFRs) leading to a growing need for a potential reuse. This study assesses the impact of multiple mild-steam decontaminations with 121 °C/2000 mbar/20 min on the protection performance of disposable FFRs. It focuses on FFRs of type KN95 that is recently dominating the markets, but its decontamination is not covered in the literature. It was found that up to ten cycles, only minor degradation in the filter efficiency, breathing resistance and none in the material structure is apparent, suggesting a potential for multiple decontamination cycles at almost unchanged protective properties of KN95 FFRs.

Journal or Publication Title: Infection Prevention in Practice
Journal volume: 3
Number: 2
Publisher: Elsevier
Collation: 6 Seiten
Classification DDC: 600 Technik, Medizin, angewandte Wissenschaften > 600 Technik
600 Technik, Medizin, angewandte Wissenschaften > 610 Medizin, Gesundheit
Divisions: 16 Department of Mechanical Engineering > Center for Engineering Materials, State Materials Testing Institute Darmstadt (MPA) Chair and Institute for Materials Technology (IfW)
16 Department of Mechanical Engineering > Institute of Reactive Flows and Diagnostics (RSM)
Date Deposited: 23 Aug 2021 12:06
Last Modified: 23 Aug 2021 13:07
DOI: 10.26083/tuprints-00019343
Corresponding Links:
URN: urn:nbn:de:tuda-tuprints-193436
Additional Information:

Keywords: Sterilization Face mask Respirator Filtration efficiency KN95 COVID-19

URI: https://tuprints.ulb.tu-darmstadt.de/id/eprint/19343
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