The purpose of this study is to investigate whether or not the difference of salon shampoo has a change on sensibility evaluation of user. Fifty healthy university students participate in this experiment. Four conditions are required to complete this experiment since there were four kinds of salon shampoo. The subject's sensibility evaluation is measured after wash and dry hair. As one of the results, it was shown that the difference in the efficacy of salon shampoo affects the user's sensibility evaluation. Especially, it was shown that the sensory evaluation was affected by the difference in the user's hair types.

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This study proposed a tool for self-diagnosis and improvement using an infection control level chart specifically for nursery schools to address air quality management and infection prevention issues in social welfare facilities. Through a trial diagnosis based on an online questionnaire, we evaluated the facility and ventilation and infection control capacity on two axes and derived effective policies to control outbreaks of large infection clusters. We also demonstrated that management and improvement of ventilation facilities can reduce the risk of infection and showed the potential for the social implementation of a self-diagnostic tool based on the application of QC circle activities.

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