Theatre pollution control

TLDR

Pollution control should be simple, cheap, effective, and not introduce hazards or complicate anaesthesia. These goals are attainable using a simple passive system. Convenience is enhanced by a concentric tubing system that collects effluent gases at the machine end and exhausts them outside. The additional expiratory resistance is minimal.

Abstract

Pollution control should be simple, cheap and effective. It should not introduce further hazards to the patient nor significantly complicate the practice of anaesthesia. These goals are attainable using a simple passive system. Convenience in use is enhanced by a concentric tubing system which allows effluent gases to be collected at the machine end and exhausted to the exterior. The additional expiratory resistance is minimal.