1. Enforcement policy for sterilizers, disinfectant devices, and air purifiers during the coronavirus disease 2019 (COVID-19) public health emergency: guidance for industry and Food and Drug Administration staff Publication: [Silver Spring, MD] : Center for Devices and Radiological Health, March 2020 Subject(s): Air FiltersCoronavirus Infections -- epidemiologyDisinfection -- instrumentationPandemicsSterilization -- instrumentationUnited StatesUnited States. Department of Health and Human Services.United States. Food and Drug Administration.