Efficacy of the ejector flow-meter. A scavenging device for anaesthetic gases.
Measurements of air concentrations of nitrous oxide and halothane in the breathing zone of the anaesthetist and the operating-room nurse were carried out during inhalation anaesthesia with a Mapleson D system. Gas removal was performed from inside the breathing system at the same rate as that of the fresh gas inflow by means of an ejector flow-meter. The concentrations of nitrous oxide and halothane were maintained below the Danish Threshold Limit Values of 100 and 5 parts per million, respectively, by using this type of scavenging. When these anaesthetics were used simultaneously, the reduced Threshold Limit Values were not exceeded during endotracheal anaesthesia.
Obel
D
D
Jørgensen
S
S
Ferguson
A
A
Frandsen
K
K
D000395:Air Pollutants, Occupational; D000776:Anesthesiology / Q000295:instrumentation*; D006221:Halothane; D008452:Maximum Allowable Concentration; D009609:Nitrous Oxide; D009873:Operating Rooms; D012212:Rheology / Q000592:standards*
D000395:Air Pollutants, Occupational; D009609:Nitrous Oxide; D006221:Halothane