Carell (Nurse West), one of the four major sanitary disinfection brands of GAMA (Gamma) Company in the UK. The formula of "Karel Gamma" series products was transferred to the civilian market in China under the name of "Karel Xihu", and advanced western clean disinfection products and concepts were introduced to China. At present, most of the disinfection wipes on the market are alcohol disinfection wipes, but alcohol is irritating to human body, especially it can not be used for cleaning and disinfecting babies. There are also some alcohol-free disinfectant wipes, which only contain 1 or two kinds of disinfectant ingredients at most. While killing some bacteria, it is easy to mutate the remaining bacteria, thus causing greater harm to the human body. Karel's disinfectant wipes contain no alcohol and six disinfectant ingredients, which can effectively kill more kinds of bacteria and viruses and prevent the constant variation of viruses.