... cool and fresh Save 80% operation cost Type: Ventilation Fan Ventilation Fan Airflow:18000m3/hAir Pressure:200PaPower Supply:220V/50HzPower Consumption: ... from bottom,16-speed,made of plastic.Display temperature, humidifier, water level,Exhaust fan function, and password function.80 to ... airflow, light weight, low noise, aerofoil shaped axial fan using ABS and MPPO material Moisture and tropic proof, ...