everlasting comfort essential oil diffuser (400ml) - small & large room home aromatherapy air scents everlasting comfort it's time to improve your home's indoor experience by transforming it into your personal fragrance oasis. essential oils have been praised throughout history for their ability to soothe the mind, body, and soul. our air diffuser is designed to delight the senses and create an environment reminiscent of your favorite spa or outdoor retreat. our air diffuser's whisper quiet ultrasonic motor softly releases a continuous mist of water and fragrance that refreshes the air. it features a 400ml water tank and variable mist output function that will keep your scent diffuser pumping for up to 13 continuous hours. or you can choose from several timer options (1, 3, or 6 hours). you can further customize your experience by choosing from 7 led light colors or by setting it in carousel mode. for those who prefer either a dimmer light or no light, we built-in the option to select your brightness level (high, low, or no light). we also include a cleaning kit that lets you keep your essential oils diffuser operating at its peak. we make safety and reliability a top priority in all everlasting comfort products. that's why we added an auto-shutoff function for when your ultrasonic diffuser runs out of water. to ensure you are confident and comfortable with your new diffuser, we partner with intertek labs to test all electronic components to be etl certified. relax comfortably and let your worries melt away.