US Patent 10590588 Laundry apparatus

A laundry apparatus includes a drum rotatable on a shaft and including at least one predetermined region made of metal; a tub surrounding the drum; an inductor provided on the tub and heating the drum by generating an electromagnetic field; and an air passage duct including a first duct provided as a passage for exhausting air outside the tub, a second duct provided as a passage for sucking air into the tub, and a fan for generating air flow, wherein the air drawn into the tub via the second duct is supplied to an internal space of the drum via a penetrating hole provided in a circumferential surface of the drum by the fan and then exhausted to the first duct after passing through a drum opening provided in a front portion of the drum.