A treat for the senses. Fill your space with the healing benefits of essential oils. Simply add a few drops of desired essential oil with water to the diffuser and breathe in aromatic bliss. Recommended to use with EMULSION PURE featuring Yon-Ka Quintessence; an intoxicating ensemble of lavender, geranium, rosemary, cypress and thyme essential oils. - Ultrasonic Diffuser disperses an ultra-fine mist of essential oil vapor into the air. - 5-7 hours continuous atomization. - 7 mood lights. - Whisper quiet. - BPA-free.