VIVOSUN 6 Air Carbon FILTER AND inline Ventilation Fan SET for gROW NEW. All-In-One Combo: This inline fan combo enables your ventilation system set up in a grow tent, which is ideal for cooling down heat from lighting fixtures and controlling hot and humid conditions Powerful Inline Fan: Made of galvanized steel, the 6-inch inline fan runs at a speed of 2450 RPM and produces an air flow of 440 CFM, with a noise level of just 50 dB the maximum Premium Carbon Filter: Interior and exterior mesh construction provides 53% open area for free air flow; It is filled with 1050+ RC 48 Virgin Australian activated charcoal captures air contaminants effectively Multi-Layer Air Ducting: It comes with 3-layer construction--inner and outer layers are made of heavy-duty aluminum foil that is fire-retardant and its middle layer adopts PET thermoplastic 2 Rust-free Clamps: The kit includes a pair of clamps that are made of stainless steel, which are used for securing the connection between ducting and inline fan to keep the connected components in place Highly recommend it so the whole street won't smelll like that sticky icky icky GREEN =.