title: Oxygen concentration delivered by Venturi masks with in-line humidification.
mesh_terms: D006801:Humans; D006813:Humidity; D008397:Masks; D008722:Methods; D010102:Oxygen Inhalation Therapy / Q000295:instrumentation*; D012131:Respiratory Insufficiency / Q000209:etiology / Q000628:therapy; D013997:Time Factors