An improved airbrush can comprise a housing and an airbrush assembly. The first planetary gear set has a first member continuously interconnected with an input shaft. The flexible covering can take the form of a cloth covering. The control device returns this energy information of the food and drink or the health control information associated with this energy information, so that this information is displayed on the health control terminal. Arranged in the mixing vessel in alignment with the inlet opening and axially adjustable in relation to the inlet opening is at least one movable mixing element to mix the polyurethane component fed into the mixing vessel with gas injected into the polyurethane component via a nozzle. The insulation region is formed by a mirror region of metal material, a channel-stopper region having the second conductivity type, surrounding the mirror region, and a coating region, of dielectric material, arranged between the mirror region and the channel-stopper region.