Fully automatic maintenance-free and stable dehumidification system with a polymer solid film that maintains 30~40%RH interior humidity (digital hygrometer is adopted) • New dehumidification system reduces power consumption, vibration, and noise • Shelf boards can be adjusted to 15 levels at 28 mm intervals depending on the size of the stored item • Two frame colors, white and black, and the main cabinet is a transparent type and a smoke type (black frame only) that prevents stored items from changing or fading