• Powerful mini compressor built into the EPUS-Nano sprays out atomized cold temperature mist from water or liquid based ampoules, toners or any other water-based ingredients such as Vitamin C. Atomized mists are rapidly absorbed into the skin and helps tighten pores and increase elasticity to the skin. EPUS-Nano is user-friendly and built with single-button operations. You can turn on the power by pressing the power button once and increase the intensity of mist flows by pressing the button in succession and you can turn off the Nano by pressing the power button for few seconds. Nano is not a 100% waterproof product so do not expose liquid or water near the power button area. To cleanse, simply mix 1 part rubbing alcohol (70%) with 1 part water and activate the sprayer after each ampoule or toner usage.