What mask should I wear to protect against transmissible acute respiratory infections?

Department of Internal Medicine, Wayne State, University School of Medicine, Detroit, MI

Department of Internal Medicine, Wayne State, University School of Medicine, Detroit, MI

Director of Infection Prevention and Hospital Epidemiology, and Director of Antimicrobial Stewardship, John D. Dingell VAMC, Detroit, MI

Epidemiology Coordinator, Karmanos Cancer Center, Detroit, MI

Division of Pulmonary, Critical Care, and Sleep Medicine, Wayne State University School of Medicine; Professor of Medicine, Wayne State University School of Medicine; Medical Director, Medical ICU, Harper University Hospital; Service Chief, Pulmonary and Critical Care, Karmanos Cancer Center; Medical Director, Critical Care Service, Karmanos Cancer Center, Detroit, MI