A person with a surgical mask on their face, generally used in a hospital setting, or when working with dangerous fumes.
Also seen in public places (primarily in Asia) to avoid sickness, or spreading disease. Windows 8.1 showed this as a dust mask, which has been fixed to show a medical mask in Windows 10.
Face With Medical Mask was approved as part of Unicode 6.0 in 2010 and added to Emoji 1.0 in 2015.
😷 Bird Flu
😷 Mask Face
😷 Surgical Mask