I purchased this product without really thinking and you can learn from my waste of money. If you are a smoker and intend to light up and set your cigarette, cigar, etc. in the ashtray and let it burn....you might need this. If it is in your fingers, you will have to hold it under the umbrella to in order for the thing to work! It makes no sound..does it really do anything? The smoke wafts around the top and nothing exits the small openings on top. The first time I cleaned it, (very carefully with a very mild soap in water and let it dry overnight unplugged) and then plugged it in and turned it on, the light (this is the indicator that it is operating) came on, went out, and it is now a reminder to me to STOP AND THINK BEFORE I SPEND MY HARD EARNED MONEY ON GARBAGE LIKE THIS!!!!