Dear KM,
Please check with the following link.Hope it will help.
http://www.medaes.co.uk/ (The MEDÆS Anaesthetic Gas Scavenging System (AGSS) is an active system that removes waste anaesthetic gas mixtures from operating rooms and other areas in which anaesthetic gases are administered. The design of the system is in compliance with BS 6834:1987. The oil-free exhauster units provide reliable service with the minimum of maintainance necessary. A range of simplex and duplex units are available to suit all system sizes, with remote start switches being installed at the points of use. BS 6834 compliant receiver and terminal units complete the system eliminating the possible health hazards concerned with frequent exposure to anaesthetic gases.)
Regards
Sajeev
