The measures taken with the introduction of coronavirus (COVID-19) into our country are increasing day by day. Hospitals of critical importance are among these measures. Hospitals are an environment where many people come together and are able to infect each other. The number of patients entering intensive care is increasing due to COVID-19. Mobile (portable) hemodialysis water purification systems are needed for hemodialysis patients who are in intensive care to continue hemodialysis treatment.