The fire door leaks air. Find that department.

1 The relevant building department or property management office should be consulted for air leakage of fire doors.

The air leakage of the fire door may be caused by improper installation or poor sealing performance of the door, which needs professional inspection and maintenance.

3 If the fire door of the residential area leaks air, you can contact the property management office; If there is air leakage in the fire doors of public places, you can consult the place management department or relevant departments.