HBX Premium Grow Room HEPA Intake Ventilation KitPremium Intake Ventilation Kit from HBX Keep Bugs And Pollutants From Entering Your Grow Tent While Providing Fresh Air To Your Plants With The HBX Basic Grow Tent Intake Kit. The HBX Basic Grow Room Intake Ventilation Kit is a great low cost option for filtering incoming air into your grow room or grow tent. The active carbon insert is proven to keep most bugs and pollutants from entering grow room. Included Prodcuts: Vortex Axial Inline VTA Powerfan