An?autoclave?is used to sterilize?surgical equipment, laboratory instruments, pharmaceutical items, and other materials. It can sterilize solids, liquids, hollows, and instruments of various?shapes and sizes. Autoclaves vary in?size, shape?and functionality. A very basic autoclave is similar to a pressure cooker;?both use the power of steam to kill bacteria, spores?and germs resistant to boiling water and powerful?detergents.