Safety Warning and Precautions Do not use incorrect voltage! You must add water first before turning on the machine Do not run the machine continuously for more than 3 times to avoid overheating. Do not allow the water in the tank to drop below 1" from bottom. Do not run it empty or over the Max line！ Avoid getting water inside the housing. Water on electronics will cause damage. Do not use liquid bleach in the tank. Do not use hot water which may damage dental appliances and will cause overheating of the device and may damage the transducer. Easy to use, one button control, works with 2 modes Mode 1: 5 mins ultrasonic with UV light Mode 2: 5 mins ultrasonic with UV light + 5 mins pulse with UV light √ The UV Lights work automatically for up to 5 or 10 minutes, disinfection 99.99% is more effective and thorough, keep your dentures as good as new every day. When you open the lid, the lights automatically turn off to protect your eyes. √ For best results, you can combine the sonic denture cleaner with the denture cleaning solutions to fully clean disinfect, remove stains, eliminate odors The UV Ultrasonic Cleaner is a new designed beautiful model, with a generous 200ml capacity, which uses high-frequency 45,000Hz ultrasonic waves to penetrate 360° into crevices, effectively remove particulates/dirt from Dentures, Aligner, Retainer, Whitening Trays, Night Dental Mouth Guard, Dirty Jewelry, Electric Toothbrush Head, Makeup Brush Head, and more. How To Use Step 1. Add water and solution Step 2. Put the dental appliances into the tank. Step 3. Press the power button to choose a working mode you want for cleaning Caution 1. Before turning on, you must add water first, otherwise it will burn out. 2. After 3 times of continuous work, the machine needs to rest for 10 minutes. Press once to mode 1: 5 minutes ultrasonic with UV light. Press twice to mode 2: 5 minutes ultrasonic w/UV + 5 minutes pulse w/UV light. Press 3 times to turn off the device. For daily cleaning and disinfection, use mode 1 or mode 2 for one circle. For items with heavy stains or buildup, use mode 2 for 2-3 circles.