I ordered a Lava Tube Kit and 3 extra atomizers. 6 days after receipt of the order all 4 atomizers were dead. The first atomizer I used lasted 2 days, this happens, oh well. But, I went through all of the other 3 atomizers to find that they were all dead. Wow. When I contacted Volcano, they indicated they have a 3-day doa return for atomizers!! Seriously, 3 days!! In fact, their policy is actually no returns on any atomizer, but as a 'courtesy' they will take returns on doa atomizers if they are notified within 3 days of order receipt. Most suppliers give 10 to 14 days to return doa atomizers, so I thought I would let everyone know. I would not order any atomizers from this company, but if you do, be aware of this policy and it is not posted on their web site. They do say no returns on atomizers, but one would expect there would be exceptions for defective products.