a method for cleaning an interior of a coating booth is proposed in which blast air is used as at least one of the means for cleaning . for primary cleaning of the coating booth , blast air and corresponding suction operations are used , whereby blowing and suction can be carried out simultaneously , cyclically or sequentially . the invention also relates to a coating booth . the floor and / or the ceiling of the coating booth are formed by a separate floor part and / or a ceiling part which are movable relative to the peripheral wall . the floor part and / or the ceiling part include a cleaning device which can optionally be integrated with the respective floor part and / or ceiling part . the floor part and / or the ceiling part hence operate as a cleaning device for the coating booth . the cleaning device can be displaced in the interior space of the coating booth in a longitudinal direction .