I wanted to try the fog tank at my business and had to sign a 1 year contract. I tried the product for 6 months and it wasn't a good fit for our operation. I tried to cancel the contract but they wouldn't let me. I understand that I signed the contract but thought that since I was hesitant at first but then gave their product a shot and wasn't satisfied they may have been reasonable and let me cancel. I don't recommend using this company and being locked into an expensive year long contract unless you are sure this product is what you are looking for.