title: The ejector flowmeter as air/oxygen mixing device. An apparatus providing gas mixtures with adjustable oxygen content for high-flow humidification systems.
abstract: The ejector flowmeter is constructed for continuous removal of excess gas from anaesthetic circuits. This instrument can be used as an air/oxygen mixing device for high-flow humidification systems in wards where compressed air is not available. Pure oxygen is used as driving gas through the ejector. A nomogram has been constructed to show the relationship between oxygen driving pressure, inlet of air to the flowmeter, FIO2 and total outflow.
mesh_terms: D000388:Air; D006801:Humans; D006813:Humidity; D010100:Oxygen; D012138:Respiratory Therapy / Q000295:instrumentation*; D012212:Rheology / Q000295:instrumentation*
chemical_list: D010100:Oxygen