Get yourself a big humidifier for your big house and forget the smaller ones which only covers small portion of your room, my defuser has humidifier has a bigger knob to control the amount of fog that comes out, when the knob is open fully it can work for 12h continuous non stop and when half knob outlet is open it can work for 24hrs non stop, it has water indicator to shut the defuser down when the water gets finish, it has storage capacity of 3L(3000ml) meaning it can take the big voltic water container/bottle two and work for 24hrs non stop. The container is transparent so you can see the water level as it goes down with a colorful RGB light for home night decoration in your room. Don’t waste your money on smaller ones which only work for just 4-8hrs with huge cost and get yourself a bigger one with less cost of only 300 just call