If you want something similar, try a negative ion generator. They work on some pretty sound principles, and they're actually good for your respiratory system, most hospitals in Europe are required to have them. I have one and there is almost no smell at all, granted I have only been flowering two small plants, but I never smell anything. They create negatively charged particles in the air that grab hold of anything else floating around, then it simply drops to the ground for you to vacuum up. Plus my sinuses have never been clearer hahaha