The Air Box Junior CARBON filter obliterates excess heat, destroys odours and circulates healthy fresh air. Can be used as an Intake or exhaust and comes with an economical, replaceable CARBON filter. It accepts a standard 10″ duct. Can be easily hung using rope, chain, cable or ratchets. It is easy to install, easy to use, easy to maintain and adaptable to any duct/ filtering system. Replaceable high-flow carbon filter uses 100% premium virgin coconut charcoal medium, 100% of the filter surface area is used. For commercial, industrial and residential applications.