• The EPUS-Nano is a user-friendly device with a powerful mini compressor that sprays atomized cold mist from water or liquid-based ingredients like ampoules, toners, or Vitamin C. The mist tightens pores, increases elasticity, and is quickly absorbed into the skin. To use, press the power button to turn on the device and increase mist intensity by pressing the button repeatedly. To turn it off, press and hold the power button. The Nano is not waterproof, so keep it away from liquids. Clean it by mixing 1 part rubbing alcohol (70%) with 1 part water in a vial and activate the sprayer and deplete all the cleaning mixture once a week for optimal performance.