Smart Humidity (Humidity Zone / Humidity Control System)
Haier's Smart Humidity (HCS) drawer keeps fruit and vegetables fresh with ~90% humidity and a plant-fibre membrane that reduces condensation.
Haier’s Smart Humidity feature commonly refers to its Humidity Zone / HCS (Humidity Control System) produce drawer design. Haier explains that a plant-fibre membrane/filter helps maintain an optimal high-humidity environment (stated as ~90%) inside the drawer to keep fruit and vegetables fresh longer while preventing condensed water buildup.