The AirOne Flex is the first battery-powered ventilator lung inhalation device. All the advantages of the original with a fixed power connection have also been applied to the battery-powered device. Inhalation at rest ensures optimal blood supply to the bronchial area. It is very easy to use and virtually maintenance-free. The splash-proof design (IP54) and shock-absorbent materials ensure safe operation. Transparent horse mask for easy control of correct inhalation. Optimal fit of the mask thanks to the soft and flexible rubber seal. Operation independent of the power supply thanks to powerful lithium-ion batteries. Fault indicator in case of low water level or overheating. Easy cleaning of the mask thanks to removable valves.