I just recently bought a crane cool mist humidifier that does not have a fan. (4 1/2 star rating on amazon) I hooked up two plastic tubes to it and ran them to my tanks. It works great and I dont have to stress about humidity anymore. the water reservoir is large so it can go a few days without changing the water. I have heard a lot of problems and bad ratings on amazon for the reptifogger. mostly fan issues. the only upside to them is that you can set them right on top of the cage because they are small in size.