<p> The carbon filter can effectively remove the odor of the enclosed indoor space or the inside of the grow tent. It not only removes odors but also filters and absorbs harmful substances and pollutants. If you want to fully enjoy the fun of indoor planting, it will be a necessity for your home.<br /> The item can be used as an air intake or exhaust filter for various settings, suitable for indoor planting tents, bathrooms, basements, and kitchens. It is a must-have air quality butler for your home. This carbon filter needs to be combined with straight exhaust fans and ducts of the appropriate size.<br /> <br /> <strong>New upgraded product!</strong> The outer surface of the filter is upgraded from a conventional round hole type to a hexagonal hole. The opening area is increased and the ventilation volume is significantly increased so that the filtration effect is remarkably enhanced. The same amount of ventilation as the old version but smaller in size.<br /> <strong>1200+ RC48</strong> Virgin Australian activated carbon is one of the most adsorbed carbons in the world.<br /> Air Flow: <strong>515CFM</strong>. The panel ventilation rate has been further improved from 53% to <strong>62%</strong>, greatly reducing air volume loss and improving work efficiency.<br /> <br /> The tapered base conforms to the mechanical design principle and can better exert the adsorption effect of activated carbon. Reversible filter flange and base for longer life. (We recommend that you reverse it once in half a year to improve the use.)<br /> Reverse installation requires a screwdriver, and minor adjustments are made to the alignment of the holes, making installation easier.<br /> <br /> <strong>The package includes:</strong><br /> 1 6 x 20 Inches Carbon Filter<br /> 2 Replaceable High-quality Material Pre-filters (Silver)<br /> 1 Pair of Carbon Filter Belt </p> <p> <br /> </p>