[Features of Energy Recovery Ventilator] ◆ Automatically introduce fresh air, filter/purify/sterilize the air, and recover the temperature of indoor air conditioning to achieve air circulation, purification, and energy saving. ◆ Super energy-saving and ultra-quiet - DC inverter fan. ◆ 1 unit is equivalent to 2 units, the smallest size and the largest air volume in the industry, with a clean air volume of > 600CMH. ◆ The heat exchange engine of the energy recovery ventilator adopts high-tech graphene, with extremely high heat exchange efficiency and a 10-year warranty. ◆ The copper ion sterilization net is permanently effective and does not need to be replaced. ◆ Replacing the filter is extremely convenient - lift cover and extract type. ◆ Can choose positive and negative sides to match the residents on both sides of the apartment elevator, avoiding bending of the air duct and reducing the air volume. ◆ Equipped with a safety power-off mechanism. [Features of the Chinese Color LCD Controller] ◆ Intelligent control of numerical values. ◆ Can switch between manual and automatic modes and wind speed (strong/medium/weak). ◆ Display of CO2/PM2.5 values, and can display the replacement of high-efficiency and pre-efficiency filters in Chinese. ◆ Has a web page and can be set up and used directly on a mobile phone. ◆ The JNC platform can manage more than 100 Green Energy Recovery Ventilators simultaneously. ◆ The controller can control up to 4 energy recovery ventilators at the same time. ◆ The CO2/PM2.5 sensor can be calibrated. [Applicable Places] Gyms, kindergartens, medical institutions, dust-free rooms, restaurants, department stores, supermarkets, KTVs, cinemas, offices, factories, all indoor places, and homes.