The document discusses various types of airway equipment used in anesthesia including face masks, oral and nasopharyngeal airways, laryngoscopes, and endotracheal tubes. It describes the components, uses, sizes and types of each device. Face masks allow administration of gases without an apparatus in the mouth. Oral and nasopharyngeal airways maintain an open airway. Laryngoscopes are used to visualize the larynx for intubation or foreign body removal. Endotracheal tubes provide a conduit for gases into the trachea during anesthesia. The document provides detailed information on the features and proper use of these important airway management devices.