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Aim To develop a protocol to ensure the quality of respiratory protective devices for healthcare workers nursing and treating patients with possible or confirmed COVID-19 in the Catharina hospital. Background Due to the COVID-19 outbreak a shortage of respirators is occurring worldwide; more specifically, CE-certified FFP2 respirators. This has resulted in an increased supply to hospitals of alternative respirators of uncertain quality. Nevertheless, the quality of the respirators used by our healthcare workers must be ensured. Method