Quote Originally Posted by Zero Revolt
I have activated charcol inside a cheese cloth that I sewed into a bag and I just insert it into the vent tubing. The best thing is that it completly eliminates the smell of cannabis flowering and only slows the extractors power down by an almost unnoticable amount and it disperses all of the unwanted heat.
How many pounds are you using using? What is the area of coverage and how many Sqft you are growing in.

I'm a fan of active charcoal and I know it works. I have found that 15 pounds in 3 layers works great for up to 60 Sqft and 20-25 pounds works as well for up to several hundred Sqft. I'm still trying to figure out the pounds to-Sqft ratio that will work for all but the difference in several makers of Active Charcoal may be an issue. I'm still reacharing this if you have information you think would help; that would be great, thanks