or the sterilizer 1 can also connect with external power sources for supplying power the chamber 30 is designed according to the style of the housing 10 and the sterilization device 20 with certain space connecting with the sterilization device 20 such as uv light 21 or ozone generator so as to make the chamber 30 be sterilized by the sterilization device 20 an opening 11 connecting with the chamber 30 is mounted on the housing 10 thus part 201 or whole of the tableware 2 such as knives forks spoons and chopsticks can be set inside the chamber 30 through the opening 11 to be exposed to uv light or ozone gas generated from the sterilization device 20 for sterilization and disinfection after performing the sterilization process the tableware 2 is taken out and used there is no limitation on shape of the housing 10 of the sterilizer 1 it can be a cuboid formed by an upper half 10 a and a lower half 10 b so as to make the chamber 30 have certain length the length of the housing or the chamber 30 is preferably shorter than the length of the tableware 2 such as knives forks spoons or chopsticks and the opening 11 is preferably arranged on one end of the housing 10 as shown from fig1 to fig4 thus the.