What kind of air does the car air conditioner automatically blow out when the engine is off and power is cut off?

[DeReese]

When the car engine is off and power is cut off, the air conditioner automatically blows out natural air. Below is relevant information about car air conditioning: Air conditioning layout: Different types of air conditioning systems have varying layouts. Currently, most passenger cars widely adopt integrated heating and cooling air conditioning systems. The layout involves assembling components such as the evaporator, heater core, centrifugal blower, and control mechanisms together, collectively referred to as the air conditioning unit. Air conditioning components: Modern air conditioning systems consist of a refrigeration system, heating system, ventilation and air purification devices, and a control system. Car air conditioning generally includes components such as the compressor, electronically controlled clutch, condenser, evaporator, expansion valve, receiver-drier, pipelines, condenser fan, vacuum solenoid valve, idle speed controller, and control system. Car air conditioning is divided into high-pressure and low-pressure lines. The high-pressure side includes the compressor output side, high-pressure lines, condenser, receiver-drier, and liquid lines; the low-pressure side includes the evaporator, accumulator, return lines, compressor input side, and compressor oil sump.