Abstract: The present disclosure relates to an oral irrigator including: a storage unit configured to store water; a pumping unit configured to pump water of the storage unit; a nozzle unit configured to inject the water pressurized by the pumping unit into an oral cavity; and a controller configured to control of the pumping unit, wherein the controller is configured to store a pattern in which an initial stage of gradually increasing load of the pumping unit, a preliminary cleaning stage of maintaining an injection pressure at a first pressure , a full-scale cleaning stage of maintaining the injection pressure higher than the first pressure and a final cleaning stage of maintaining the injection pressure at a third pressure lower than the second pressure and the load of the pumping unit is automatically controlled based on the pattern according to a one-time input of an operation signal.

Abstract: A massager may include: a handle; a pair of roller shafts provided on left and right sides of a first side in a longitudinal direction of the handle such that a distance between the roller shafts increases towards a distal end; a roller rotatably supported on the roller shaft; a center shaft provided on the first side in the longitudinal direction of the handle to be oriented in a direction from left to right between the pair of roller shafts; and an auxiliary roller rotatably supported on the center shaft.

Abstract: Disclosed herein is a cosmetic device. The cosmetic device includes a pair of shafts secured to a handle, a pair of rotating bodies rotatably coupled to the pair of shafts, and a pair of vibration motors configured to transmit vibration to the pair of rotating bodies. The vibration motors are installed in the shafts, respectively.