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Frontline health care workers are at high risk of contracting severe acute respiratory syndrome coronavirus 2 (SARS-CoV- 2), which causes coronavirus disease 2019 (COVID-19). Personal protective equipment (PPE), including N95 respirators (N95s), is essential for prevention of COVID-19. The recommends that health care workers dispose of N95s after a single patient encounter. However, it recommends N95 extended use (wearing the same N95 for multiple patient encounters) and limited reuse (storing an N95 between encounters for use over multiple encounters) during critical PPE shortages.