One of the most important and most effective, as well as the oldest of measures to prevent the spread of infection is hand disinfection. The link between the thorough hand disinfection and lower incidence of infection was known in 1847, when it was possible to reduce the maternal mortality rate from 12.3% to 3% by requiring hand disinfection. Today, experts do not question the need for this hygienic measures. After several decades of requirements for medical staff greatly increased. The concept of "HH" (hand sanitizers) offers the instant disinfection for hospital staff and patients, more the easier and accurate way. The user needs to place his hands on the device, where special spray is sprayed on hand. After the user will wash it, he needs to put his hands under an ultraviolet lamp, which highlights areas where there still remain bacteria.