REANIMAT-O2-Blend is a universal device for the supply of medical oxygen-air-blends both for stationary and mobile use with dosing of the flow possible from 0 to 60 l/min, according to the intended clinical use. Optionally, a suction unit can be integrated with the insufflation assembly which makes this device indispensable for various non-invasive applications of breathing gas support in pediatrics, neonatology, and adult care.