Our waterless diffuser's unique design allows you to attach any 1 oz Wholesale Botanics essential oil directly to the diffuser for a potent, powerful, convenient, and long-lasting scent. It operates when plugged in or via an included battery, and the diffuser can be set to spray whenever you walk by or in regular intervals to keep your room fresh all day long. Plus, unlike water-based diffusers, it can last for weeks without needing a refill!