Yield Lab 6 Inch Purifier Activated Charcoal FilterDesigned exclusively for grow room applications, this grow room filter is constructed with a 52mm thick carbon layer and filled with the purest coconut carbon available. The grow room filter is the most effective way to eliminate odors, filter particulates, and purify the air to provide both you and your plants with a clean and fresh environment. Compatible with a 6 inch inline fan. Instead of leaving the bottom section unused and wasted, it utilizes