Disinfection involves the removal of pathogenic microorganisms (viruses, bacteria and fungi) that live in environments, surfaces or water systems, which are harmful to human beings and basically got extinguished with chemical agents. The main objective of all disinfection is to keep the levels of microbial contamination within the limits considered acceptable.

All disinfection should be preceded by an effective cleaning and hygiene.
Application techniques range from the most basic (impregnation) directly associated with cleaning, to the more complex (the spray on contaminated surfaces), or even treatments by airway (nebulizer).
 
When is disinfection required?
 
It is always required in those places where there is a direct skin contact with the possible contaminated surfaces. Areas such as changing rooms, toilets, swimming pools, jacuzzies, saunas, places where food for human consumption, cutting rooms and food preparation areas are handled.

There is another type of disinfection, as operating rooms and white rooms of hospitals that requires very high levels of asepsis.
It is required also in places where there is water and the possibility of development of micro-organisms that pose a danger to health,  by infection, contact or inhalation.

These water disinfection treatments are directly related with the control and prevention of legionella and the sanitizing of water systems (water intake and industrial water or process water).

Air conditioning systems are also responsible for the transmission of numerous diseases by the accumulation of large numbers of microorganisms in the interior of the system and ease therefore the dispersion.
These treatments are known as environmental quality treatments.