All surfaces of devices and medical equipment get contaminated by micro-organisms when touched by patients and/or medical personnel during a treatment. This can happen via direct physical contact with contagious materials or persons or via air-borne particles containing micro-organisms (e.g. droplets). Disinfection and cleaning are thus essential actions. Depending upon equipment and necessity, ready- to-use-products like disinfectant sprays and wipes may be used for equipment surfaces. For floors and larger surfaces, concentrated disinfectant cleansers may be used in the appropriate dilution.