♥ Cool Mist & Whisper Quiet Diffuser ♥ Adopted ultrasonic technology, Ionize essential oils into ultra-fine Mist to humidify and refresh the air, perfect for soothing your mood, relieving stress, helping to sleep and moisturizing the air. 25dB quiet atmosphere can provide a calm and comfortable sleeping night, much Quieter than other brand. ♥ BPA-Free & Waterless Auto-Off ♥ VicTsing Aroma Diffuser with BPA-free material ensures that it's 100% non-toxic and safe for babies and kids while operating. The humidifier will auto power off when it's short of water, for which the lifespan and using safety is guaranteed. ♥ Larger Covering Areas & 4 Timer Setting ♥ You can easily press the Mist button to choose a timer setting as your wishes (1 hour/3 hours/6 hours/steady, and this aroma diffuser can run up to 10 hours of continuous output. Diffuse essential oils in rooms of 30-60m² and run up to 10 hours of continuous low power.