Different physiological structure between genders reflects on daily life, in which “going to toilet” is mostly concerned. Going to toilet is an important triviality every day but is closely related to personal health. Since toilet seats directly contact with the skin, the cleanness presents critical influence on physiological health and psychological comfort. It is common to share a set of sanitary equipment in the family, where females reveal several times higher probability on contacting with toilet seats. Aiming at home toilet seats being easily polluted, an improvement program is proposed in this study to reduce gender conflict with a simple mechanism design, which is improved through experiments. Keywords: female population advantage, toilet seat, female right, convenient design of toilet, use efficiency of toilet.
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