cannabis equipment

What Size Carbon Filter Do I Need? What size carbon filter for a 4×4 grow tent ? In most cases, a 4-inch carbon filter will be more than enough for a 4×4 tent. Since a 4×4 tent has a relatively small internal volume a 4-inch carbon filter should easily remove all the odors from the air before they are exhausted from the tent. If you plan on running an HPS (High-Pressure Sodium) light you might want to run a larger 6-inch carbon filter with a high CFM fan. In that scenario, you’ll need to vent a lot of excess heat, and you’ll need to get a larger carbon filter and fan to cool down the tent. It’s also important to size your fan accordingly so the carbon filter operates at peak performance. For that reason it’s a good idea to get a carbon filter fan combo, so you can be sure that the carbon filter and fan will work together to keep odors from leaking out of the grow tent. VIVOSUN 4-Inch Air Carbon Filter The primary claim of this filter is that it provides 100-percent filtered airflow, t...