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. 2020 Dec 24;104:320–328. doi: 10.1016/j.ijid.2020.12.056

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© 2021 The Authors. Published by Elsevier Ltd on behalf of International Society for Infectious Diseases.

Since January 2020 Elsevier has created a COVID-19 resource centre with free information in English and Mandarin on the novel coronavirus COVID-19. The COVID-19 resource centre is hosted on Elsevier Connect, the company's public news and information website. Elsevier hereby grants permission to make all its COVID-19-related research that is available on the COVID-19 resource centre - including this research content - immediately available in PubMed Central and other publicly funded repositories, such as the WHO COVID database with rights for unrestricted research re-use and analyses in any form or by any means with acknowledgement of the original source. These permissions are granted for free by Elsevier for as long as the COVID-19 resource centre remains active.

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Evaluation of the physical integrity of respirators of five different brands when new and after undergoing three decontamination cycles in an oven. (A) Deltaplus PFF2. (B) Deltaplus PFF3. (C) MaskFace. (D) Tayco. (E) Proteplus. Performance was measured by air permeability (Ap) (l/m2/s), burst resistance (Br) (bar) and pressure differential (Pd) (Δp). The graphics do not have the same scale.