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. 2022 May 29;217(2):88–93. doi: 10.5694/mja2.51585

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© 2022 The Authors. Medical Journal of Australia published by John Wiley & Sons Australia, Ltd on behalf of AMPCo Pty Ltd.

This is an open access article under the terms of the http://creativecommons.org/licenses/by-nc-nd/4.0/ License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non‐commercial and no modifications or adaptations are made.

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graphic file with name MJA2-217-88-g002.jpg — * Semi‐rigid cup type respirator: cupped particulate respirator and surgical mask 1860 or 1860S (3M) (192 respondents); flat‐fold cup type: particulate respirator DE2322 (BYD Care) (66 respondents); duckbill type: ProShield (BSN Medical) or Fluidshield surgical masks (Halyard) (262 respondents); three‐panel flat‐fold type: Aura 9320A+ particulate respirator (3M) (194 respondents).