Phat Filter, 8" x 24", 600 CFMRemove bad smell from your greenhouse or grow room efficiently and quickly using Phat Filter. It is specially designed with low density and effective virgin carbon to get rid of dust, dirt, pollens, etc., to keep the air safe and clean. Cone shaped blades provide uniform air movement, tightly packed carbon boost porosity, outer mesh offers 53% open area to maximize airflow. Machine Packing: It comes machine packed inside a plastic bag to ensure the