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. 2022 Mar 23;14(7):1296. doi: 10.3390/polym14071296

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Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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(a) UV radiation to N95 mask at University of Nebraska and (b) Hydrogen peroxide vapor generator at Duke University Hospital [118], and (c) Sterilization conditions [117].