The process of killing or removing harmful microorganisms, such as bacteria, viruses, and fungi, from surfaces and objects. Special disinfectants, such as alcohol or concentrated ammonia, are used for sterilization and can be used on everyday surfaces such as desks, furniture and computers. They can also be used in hospitals and public areas to provide a germ-free environment. The sterilization process aims to limit the spread of infectious diseases and provide a clean and healthy environment for individuals.