These quality carbon filters are manufactured and designed to complement the Gorilla range of box fans as well as other brands of fans. Made with Quality RC412 Carbon and using a uniformly compressed 38mm carbon bed they are designed to have a lifespan of over 12 months. The design incorporates an inner end cone to more evenly spread the airflow through the carbon bed and a replaceable dust filter cover.
Hydroponic Grow Room Carbon Filters Tested:
Issue 012 - Airflow Test & VOC Test - Read it here
Issue 013 - Butane Test - Read it here