Underwear sterilizer refers to an electrical appliance that disinfects underwear, underwear, close-fitting clothes, socks, towels, bath towels, pillow towels, scarves, saliva towels, baby clothes and other items through high-temperature steam, ozone, ultraviolet rays and microwaves. The appearance is generally box-shaped, and the cabinets are mostly made of polymer imitation porcelain materials. Underwear sterilizers are widely used in families, houses, villas, hotels, guesthouses, inns, cloakrooms, medical institutions for the elderly and public service places (such as hair salons, saunas, foot massage and sports venues).