Active Air Carbon Filter, 10" x 39", 1400 CFMAre you looking for high quality grow equipment to remove allergens, irritants, and VOCs from your indoor grow room? Get Active Air Carbon Filter today. It comes with a virgin activated Australian granular carbon layer that traps more particulates, a powder coated aluminum top, and base for high durability, a pre filter to eliminate large matters from the air, etc. Activated Australian Granular Carbon: Activated carbon layer create a large surface