For human life, clean water is essential. Currently, the provision of clean water is still a problem in Indonesia. Almost 80% of the population still consumes water that is not in accordance with health standards. The Knockdown ergonomic water filter for the supply of clean water becomes consumer’s interest in water users. The design of the study was descriptive comparative, and experimental. The majority of the respondents were 30 people using water filters. Data was taken by observation, questionnaire, and experimental results.