Scentsy is a wickless candle company that is sold through direct sales (you buy from a consultant). The warmers use a 25, 20 or 15 watt light bulb to melt the wax putting the scent and only the scent into the air. There is no lead, soot, smoke or fire danger.
To use your warmer simply put a cube of wax on the warmer lid and turn it on. Your wax will melt putting the scent into the air. To no longer have scent simply turn off the warmer or pour the hot wax back into the container it came in. The wax will reharden.
To change out your scent pour the hot wax back into the container it came in wipe your warmer lid with a paper towel and put your new scent in. If your wax runs out of scent simply throw the wax in the garbage and start over.
It's that easy!