Large Space HVAC-mountable diffuserKeep your indoor spaces fresh and inviting with our waterless smart diffuser. This commercial grade machine can be wall mounted and connected to an HVAC supply plenum to fragrance large spaces and entire houses. Preprogrammed with 20 intensity settings, it can fragrance spaces up to 84,500 cubic feet (over 7,000 sq ft with 12 ft ceilings), and its smart functions allow it to function during set times like before you leave and after you get home from