Robust and powerful battery air brush for cleaning workplaces, tools, and assembly vehicles, as well as for blowing out wall joints, drill holes, and more. It offers very effective efficiency due to high air velocity and correspondingly efficient air throughput. The 3-step switch with electronic air speed regulation enables material- and environment-specific use. Perfect handling is ensured by its compact and lightweight construction, along with ergonomically rubberized grip areas. It features a safety switch with a locking device for problem-free continuous operation. The air brush is expandable and can be used with standard accessories such as a 220 mm blowpipe, a 214 mm blowpipe extension, and an adapter for inflating objects or for sucking air out of objects. It is compatible with any 18.0 Volt Li-Ion XR battery across all Ah classes. Standard configuration does not include batteries and charger, making it an optimal supplement for existing XR 18 Volt batteries.