I bought a dual tank 4 years ago and it's been fantastic through the dry winter months. I also purchased a small Air Innovations unit for the bedroom but that only lasted for 2 years before it started to leak water all over the floor. There wasn't a leak in the tank, I think the mechanism was sticking so it flooded the unit. Because everything is closed due to Covid-19 shutdown I couldn't take it anywhere to see if it could be repaired so I decided to purchase this single tank unit with the tower which I prefer. So far I am very pleased with this humidifier and I would recommend.