A non-sterile, flexible, form-shaped device designed to be placed over the nose and mouth to deliver a proportional mixture of air/oxygen (O2) to a patient's airway. It is made of non-conductive, soft, flexible polymers available in a range of sizes, and designed to create an airtight seal against the patient's face. The device may include tubing and various valves and connectors which may allow for connection to a central vacuum system to enable scavenging of residual (waste) anaesthetic gas from a patient in recovery; other respiratory equipment (e.g., nebulizer, humidifier, CPAP device) is not included. This is a single-use device.