Novel air automatic ventilation system in car car

The utility model discloses a control convenience and the novel air automatic ventilation system in car car who has the air purification function, including ECU and air conditioning system, ECU includes MCU and carbon dioxide sensor, air conditioning system and carbon dioxide sensor all are connected with MCU, air conditioning system includes the air -blower, a compressor, condensers, dry reservoir, an evaporator, the air conditioner controller, air conditioner control panel and mixed air regulating door, the air -blower sets up on air conditioning system's air intake, compressor and condenserare connected, condenser and dry reservoir are connected, dry reservoir and evaporimeter are connected, be provided with the filter between air -blower and the evaporimeter, the filter includes the frame, the dustcoat, elementary filter core and secondary filter core, the dustcoat, elementary filter core and secondary filter core set gradually in the frame along the orientation that the air flows, be provided with the wa