Although this humidifier is quiet, it had to have a smaller motor and fan blades to achieve quietness. That's the reason one gallon of water will last 24 hours. It does not achieve the same level of humidity as the older, larger Sunbeam humidifier we have in the bedroom. So far, the fan doesn't rattle like the other old one it replaced. The handles are formed into the translucent tank, making it awkward to handle. A handle on top might have worked better--like the older, larger units. The fill cap is large and difficult to seat properly to screw it back on the tank. The instructions have information about some kind of tablet to put into a cage on the bottom of the fill cap, but that information was not in the description of the unit on Walmart's website. The box included no tablet sample. I think the tablets have to be ordered directly from Sunbeam. Finally, the instructions call for completely emptying and cleaning this unit daily, a time-consuming chore I would reserve for my enemies if I had some.