We comment on the paper by Seibt and coworkers (Seibt2023) which investigates whether wearing an additional respiratory measurement mask during open-circuit spirometry assessments (respirometry mask) shows any effect on breathing pressure and perceived respiratory effort when wearing protective face masks commonly worn during the COVID-19 pandemic.

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http://dx.doi.org/10.1088/1361-6579/acebb4DOI Listing

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