The fl owmeter column MIX is used to supply medical gas O², Air, N2O CO² and is ideally used in anaesthesia and neonatology services. The device features high quality and robustness conception. The high length and dilated scale ensures light flow and fine control flowmeters enables individual calibration. The flow can be safely regulated even light flows and prevents the mixture from containing even less than 20% of oxygen. The device can be configured in several ways for outlet and inlet connection and fixation.