What if the underground garage is ventilated and the property is not open?

If the underground garage is well ventilated and the property is not open, you can:

1. Self-check the air quality and pollution sources: check the air quality of the garage to see if there are any abnormal indicators such as peculiar smell or harmful gas.

2. Improve ventilation conditions: try to use mechanical ventilation or natural ventilation, open the driveway doors and windows near the garage entrance and exit, and enhance the fresh air.