As has been commented on the page, the device smells really in the ON state in the first few weeks. This smell will disappear after a few hours. The problem is the "warm-up" of the wax. Be formed until the first bubbles take a few hours, so the sense of a lava lamp is actually no longer exists. It is also worth to cheap processing. I have a second lava lamp, which is 4 years old and a three times better processing than this.