Essential Oil Diffuser, 500ml Aroma Diffuser for Essential Oils with 8 Color Mood Lights, 23dB Ultra-Quiet Aromatherapy Diffuser Humidifier with 4 Timers BPA-Free for Home Room Office, White 8 Soothing LED Light Colors: Our essential oil diffuser with mood lights can also be used as a night light. 8 light colors selectable: red, orange, yellow, white, cyan, green, blue, and purple. You can fix your desired color or let 8 colors gradually and circularly change. Colorful ambient lights provide you with a romantic atmosphere. 500ml Capacity & 2 Mist Modes: This 500ml aroma diffuser can continuously work up to 20 hours in the low mist mode, enjoy long-lasting misting without frequently adding water. Optionally adjust the mist mode according to the area and air humidity of your room. High mist mode: 8-11 hours; Low mist mode: 12-20 hours. 23dB Ultra Quiet & 3 Timers: Adopt the noise reduction technology, our oil diffuser makes less than 23dB sound (quieter than talking sound) while working. No noise disturbing, so you can have a sound sleep all night. 3 timer (1H/3H/6H) options allow you to control the working time of the diffuser, no longer turn off the diffuser manually. BPA-Free & Auto Shut-Off: Safety is always the top priority. Our essential oil diffusers, made of premium BPA-free PP materials, are 100% friendly to babies, kids, and adults. Due to the waterless auto-off function, the diffuser will automatically turn off when the water runs out, which not only protects the machine itself but also avoid potential dangers.