The waterless diffusers we have are nebulizing diffusers, which adopts the Technology of two-fluid atomization, namely, making use of the high air pressure to compress the essential oil through the atomizer to produce a very uniform and finest atomization effect and directly dispersing the molecules of essential oil into the air as a fine mist, no water and no heat, this Physical Principle makes it possible to keep the natural property of the essential oil molecules without any damage. The waterless essential oil diffuser is applicable for 5ml/10ml/15ml/20ml essential oils, has a Type-C USB interface with a rechargeable built-in battery, and can be used cordlessly and put anywhere you want. What we currently have are car/ tabletop/ wall mounted types, suitable for home/ office/ bedroom/ Spa/ bathroom, etc.