designer's own words:The conventional humidifiers had difficulties in assembling and controlling. You can simply water Fog Flower just the way you water real flowers. Then the water will flow through the funnel structure. After the water goes through the humidifier module, and vapor will effuse from the flower bud opening.The vapor will blossom like a beautiful flower. The intensity of the humidifier can be controlled by moving the sprout-shaped button vertically.‘Fog Flower’ contains 600ml of water, and it can be operated for 3 to 4 hours. design for all.. like the saying " Form follows funtion". the design of fog flower is based on the behavior, watering to a pot , that we used to do in childhood and that leave a little happy memores in our mind. I assure that this product also give that kind of emotional experience to user.