The car air outlets can be closed, but all air outlets need to be closed manually so that the gas in the vehicle air conditioning air box will not enter the cab due to air flow. The specific operation steps are as follows:
1. Pull on the car's handbrake to avoid rolling away during operation.
2. Turn the wheel in the picture to the right to close the left air outlet.
3. Turn the wheel in the picture to the right to close the central air outlet.
4. Turn the wheel in the picture to the right to close the right air outlet.
5. Turn the wheel in the picture to the right to close the rear air outlet.