Air polishing device with an ergonomic fit, for precise cleaning with less hand fatigue. Gentle and effective removal of biofilm and discolourations. Optimal supragingival and subgingival application. Focused and precise powder stream for highly effective cleaning and reduced powder mist. Narrow shape of the cannula provides good visibility during supragingival cleaning. 360° rotatable grip sleeve allows the user to work comfortably, even in difficult-to-reach areas. Super-light and ideally balanced, with individually adjustable lengths for comfortable handling and stress-free treatment. 2 grip sleeves with different lengths to fit hands perfectly. Powder container can be filled in advance and sealed with a rubber seal which shows the indication. 3 levels of adjustment: level 1 for powderless cleaning of the teeth to remove powder residue; levels 2 and 3 provide individually adjustable cleaning performances depending on the patient and indication.