CKV-3mm activated carbon to refill your filter Do not allow unwanted odors to escape the grow room. If your filter doesn't neutralize odors like it used to, then it's time to replace the activated carbon in it. Your filter will work like new! Activated carbon is a highly effective filter material with wide application, made of granular microporous material with a large surface area and high absorption capacity. Activated carbon can be used to purify air, water, air filters, water, respirators, metal finishing, neutralization of strong odors in hoods and much more.
