Right now, you see it everywhere and in all variations - disinfectants. But what should be considered and which active ingredients are decisive for combating dangerous viruses and bacteria? First of all you have to know that the disinfection progresses in waves. This means that during the disinfection the microorganisms are greatly reduced so that they cannot cause an infection. However, the remaining stock grows again after the exposure time, so that the effect does not remain constant. So you should regularly disinfect your hands. Since a natural residue of microorganisms remains on our skin, one cannot speak of “100%”, but rather, as stated on the packaging, of “99.8%” of the destruction of organisms on the surface of the hand.

It should also be noted that a product is suitable for the skin and does not attack it aggressively. In addition, a disinfectant only works reliably against pathogens such as viruses (e.g. COVID 19) if it has been successfully tested for it and has been declared "virucidal". Most hand sanitizers are propanol or ethanol (alcohol) based. The alcohol content must be at least 70% in order to achieve at least a limited virucidal effect. Solutions based on chlorine or peracetic acid are usually corrosive and are rarely used as HDM. The Disinfectant Commission of the Association for Applied Hygiene (VAH) advises against using products containing chlorine with sodium hypochlorite due to the instability and possible skin irritation.


Author: Nusha Chenari.

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