These scent systems are pre used and are in a very good condition. They will only show very minor / light cosmetic signs of use, markings & scratching. The product may not have the original box. The EcoScent Deimos Pro scent delivery system is the ideal solution for creating ambient scenting in any business setting. Ideal for medium sized commercial areas – hotel, meeting rooms, retail shop, bars, VIP reception room.The Deimos Pro uses dry-air technology that releases fragrance without sprays or aerosols.The Deimos Pro scent system offers adjustable duration and scent intensity settings — making it easy for you to customise the scent output for your chosen environment.This scent machine has a built in fan to disperse the scent so a slight fan noise will be heard when the unit is in operation.The EcoScent HVAC scent system should not be in operation if the HVAC unit supplying the warm/cold air is not operating. Key Features Installation: Stand alone, wall mounted, or connected to your HVAC system.Coverage is up to 2000 cubic meters. The timer system allows settings for operation times, choice of day etc.