The dictionary definition of a disinfectant is an antimicrobial agent which kills or inactivates dangerous/harmful micro-organisms.Disinfectants can sometimes be mixed up with sanitisers which are substances that reduce the number of microorganisms to a safe level but do not completely destroy all of them.
The main physiological difference between a disinfectant and a sanitiser is that at a specified dilution a disinfectant must be able to kill more micro-organisms than that of a sanitiser.One thing that most sanitisers and disinfectants are unable to do are sterilise which would be to cause complete destruction of all microorganisms. In this case an autoclave would be used.
The problem that disinfectants have is that many are toxic and harmful to humans and animals so it is recommended that they are always treated with extreme care. Many modern household disinfectants contain a substance called bitrex which is a very bitter tasting 除甲醛 liquid. The idea of including this is to discourage the ingestion of the disinfectant by children and animals.
Any disinfectant that is used indoors should: (this includes home, hospitals, dental surgeries) never be mixed with other cleaning products because chemical reactions can occur, producing harmful gases. There have been numerous recorded incidents of people mixing bleach with other household products and falling unconscious from the gases released.Depending on what it is you want to disinfect influences your choice of disinfectant. Some disinfectants can destroy a wide range of microorganisms whilst others will only kill a small range of germs.