I chose to use a MistKing system to maintain relative humidity in my Intermediate Orchid Greenhouse. The system has worked flawlessly for me. The system was easy to install and the aftercare support provided by Marty is exemplary. Any questions are promptly answered via email by a knowledgeable human being which really makes a difference! I would recommend this system to anyone who is serious about growing exotic plants or keeping exotic reptiles/amphibians. Oliver