家用沐浴空間是家庭成員，無論成人、兒童、高齡者或是行動不便者每日都會使用的場所。然而，衛生署統計沐浴空間是居家場所意外發生率最高的區域，顯示沐浴空間並未達到各類成員的使用需求。本研究目的在於以通用性觀點探討不同類型使用者的沐浴行為困擾因素，進而歸納出台灣沐浴空間的通用性設計原則，以提供未來沐浴空間的改善基礎及設計參考。研究方法首先針對台灣地區沐浴空間之使用者分為高齡組、一般組、行動不便組及兒童組共四組進行結構式訪問調查，並從中歸納出沐浴空間的使用問題，再以此對四種類型之使用者代表進行沐浴空間勘察與深度訪談。研究結果歸納出台灣沐浴空間的五項通用性設計原則:平等使用、彈性運用、輕鬆操作、安全性與舒適感。

Home bathing space is used by every family member. However, according to the statistics of Department of Health, the bathing space is the area with the highest rate of accidents in home place. The existing problems reveal that the bathing space does not meet the needs of every family user. This research aims to discuss the troubled factors from the different types of users when they are using the bathing space and to construct the criteria of universal design for further designing and improving. This study uses interview survey to gather users which include general users, children’s users, elderly users, and or people with limited mobility. Then the presentational users are selected to their home bathing space for depth interview. The result shows that five criteria of universal design in Taiwan bathing space that are Equal Use, Safety, Ease of operation, Comfort and Flexibility in the Use.