The AirQ Adjustable Scent System delivers fresh, clean scents to individual rooms or entire homes. AirQ moves beyond its aerosol, scented candle predecessors, which do not consistently refresh the air and often create harmful health and safety risks. With the ability to adjust and control the level and amount of scent, products at airq.com are the popular choice for creating a pleasant environment in hotels and resorts. AirQ scent system is safe, and the cartridges last 60 days.