key: cord-0819065-qik2w1f1
authors: Torres, Angeli Eloise; Ozog, David M.; Hamzavi, Iltefat H.; Lim, Henry W.
title: Notes and Comments on “Proposed Approach for Re-using Surgical Masks in COVID-19 Pandemic”
date: 2020-05-21
journal: J Am Acad Dermatol
DOI: 10.1016/j.jaad.2020.05.083
sha: 6fa06632e7b391bba2f991963a3e5d1a1ca4945a
doc_id: 819065
cord_uid: qik2w1f1

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Angeli Eloise Torres, MD, DPDS 1 its effect on N95 respirator integrity rather than a quantification of its virucidal activity. 2 This 24 makes it difficult to compare its virucidal advantage over ultraviolet C (UVC) and other 25 methods. 2 Dry heating requires direct supervision during its delivery, as too high a temperature 26 (>100°C) is known to decrease the filtering capacity of respirators and masks. 2 In addition, the 27 effect of dry heating on respirator -and possibly mask -integrity varies significantly depending 28 on the approach used (laboratory oven, dry microwaving, or rice cooker without water) 2 and the 29 specific respirator or mask model. For N95 respirators, failure of fit-testing after 30 decontamination would have potential catastrophic effects on healthcare providers. 3 31

The authors' statement pertaining to UVC having "less penetration" and being "less 

Proposed approach for reusing surgical masks in COVID-19 51 pandemic

Other Methods of Decontamination of Filtering Facepiece N-95 Respirators during the COVID-54

The importance of form 56 fit testing in decontamination of N95 respirators: a cautionary note

Ultraviolet 59 germicidal irradiation: possible method for respirator disinfection to facilitate reuse during 60 COVID-19 pandemic

Efficacy of an Automated Multiple Emitter Whole-62

Room Ultraviolet-C Disinfection System Against Coronaviruses MHV and MERS-CoV

Ultraviolet 65 germicidal irradiation of influenza-contaminated N95 filtering facepiece respirators