Anesthetic Gas Cleaning in Systems The AGSS System is designed to remove the anesthetic gas mixture formed in the operating room. It is produced in accordance with AGSS, HTM 02-01. Anesthetic Gas Cleaning Systems are CE marked according to Medical Device Directive 93/42 / EEC. The Anesthetic Gas Cleaning Plant is classified as Class IIa Medical Devices. Single and double sided blower models are available. Bellows are oil-free, air-cooled side channel regenerative type and suitable for continuous operation .