The pandemic of coronavirus disease 2019 (COVID-19) is an unprecedented situation that we have never experienced during the last century.1 To cope with this situation in the absence of curative treatment or vaccine, we must turn to universal infection control resources; hand hygiene, environmental control, personal protective equipment (PPE) and quarantine.2 All of these resources are limited and should be used rationally.2 The global supply chains of PPE have collapsed, so that PPE is not available for the person, place and time requiring it the most, while it is overused than needed elsewhere. Public use of PPE should be prudential when long-term reign of COVID-19 pandemic with multiple waves is expected.
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