What is the clean water tank capacity of the H11 Max August 31, 2022 09:10 Updated The capacity of the clean water tank is 900ml. Related articles Dreame H12 Wet and Dry Vacuum User Manual How to solve the problem of charging failureļ¼ How to charge the H11 Max/H11? What is the dirty water tank capacity of the H11? How to set up voice packages in different countries?