Fragrance on demand is the domain of Environdine Studios' EnviroScents line. Compact and quiet, each EnviroScents machine uses a fan-blown heated ceramic cartridge to disperse scent discreetly into an event room. An optional duct adapter allows the unit to be connected directly to an HVAC system, facilitating dispersal over an even larger area. A library of more than 30,000 scents includes fresh ground coffee, apple pie, suntan oil and jasmine, as well as neutralizers for tobacco smoke and bathroom odors. Units come in a range of sizes and power capacities capable of spreading scent over areas up to 75,000 square feet. For more information call Woodstock, Ga.-based Envirodine at 678/494-1838 or visit www.envirodine.com.