Abstract: A refrigerator including a main body formed by an assembly of a plurality of insulation panels; a storage space in the main body; a door to open and close the storage space; and a cooling device to supply cold air to the storage space, wherein the plurality of insulation panels includes a first insulation panel coupled to a second insulation panel, the first insulation panel includes an inner case coupled to an outer case to thereby form an insulating space between the inner case and the outer case, and insulation in the insulating space, the inner case includes a space forming portion defining one side of the storage space, and a contact portion offset from the space forming portion and contacting an outer surface of the second insulation panel, and the contact portion includes an opening to reduce heat transfer between the first insulation panel and the second insulation panel.

Abstract: A hair dryer includes a cylindrical body; a handle disposed on a lower portion of the body; a main fan motor disposed inside the handle; and a sub fan motor disposed inside the body. The body includes a first flow passage extending along a longitudinal direction of the body in a central region of the body; and a second flow passage extending along the longitudinal direction of the body outside the first flow passage. Air introduced from outside by the main fan motor flows along the second flow passage, and air introduced from the outside by the sub fan motor flows along the first flow passage.