The OxyTrach delivers 23–83% FiO2 on flows from one to 15+ LPM flush. Oxygen is delivered through a standard small bore tube using the 22 mm OD adapter attached to a universal swivel elbow. The universal elbow can be connected to most aerosol nebulizers to deliver effective aerosol therapy and not compromise O2 delivery. The mask can be used with or without high humidity or aerosol therapy. It does not contain natural rubber latex or phthalates such as DEHP.