Field comparison between two nitrous oxide (N2O) passive monitors and conventional sampling methods.

Field tests conducted over the range of 4-330 ppm nitrous oxide in hospital operating rooms as well as dental and veterinary clinics showed a prototype of the Landauer NITROX passive monitor compared more favorably with a Miran 1-A IR gas analyzer than either the Solid State Sensor or bag samples. All methods were tested simultaneously in a chamber designed to produce uniform real-time monitoring.