The BIOS diffuser, is a vaporiser cold diffusion type, the essential oil is added to a glass receiver that is connected to an air pump that effectively vaporises the oil; without any heat source, breaking it up into a mist of tiny droplets that then are released into the air.
The vaporiser type releases a higher concentration of essential oil into the air and is, therefore, besides creating a pleasant ambiance in the room, very well suited for therapeutic use, for example respiratory problems, disinfecting, etc.

Safety
*In case of pregnancy, if you are asthmatic, taking medication or have unstable medical problems, please seek professional advice. Please read the instruction manual carefully