This unit puts out more humidity than most others. As long as you keep distilled water in the tank, it'll pump it into the atmosphere quite fast. I like the three levels of heat mode, which boosts up the capacity.
The customer service department is worth noting. They were very helpful in a situation I had. I had dropped the water tank onto my hard floor and the tank had cracked as a result. I contacted them and they promptly sent me another tank, free of charge. They (Person signed as August) were very professional and courteous in their correspondence with me.