Glass swivel cap Adjustable glass cap for essential oil diffusers by nebulization Bao, Dan and Naxos. The + Product: - Quality artisanal glassware. - Allows to direct the diffusion. - Adapted to our BAO, DAN and NAXOS models. Zen'Arôme, it is an expertise in Aromatherapy and essential oil diffusers since 2007. A pioneer in this sector, we develop our models according to three main axes: efficiency, reliability and aesthetics by creating our original models essentially developed with quality materials such as glass, metal, ceramics or wood while offering very competitive prices. We also attach great importance to availability and responsiveness to our customers.