Love the Breeze smart humidifier. It is so quiet. The only thing I wished it didn’t use so much water. I run it on low for about 7-8 hours and it only lasts two nights at best. The tank was advertised as 3 gallon and there is no way, nor would I want it to be as that would be too big and bulky. I’ve tried other humidifiers that I’ve returned because of noise. Simply love this purchase. I sleep so much better and don’t feel stuffy!