Does the fan room in the community work 24 hours a day? I want to buy a parking space in front of the fan room. This room has no windows except the door. I don't know if it's work or usual.

Except for real estate projects such as Shi Lang, which advocates green energy, fan rooms in other ordinary houses basically do not work 24 hours. The fan room you see may be used to send air back to the basement, and it is generally not used all the year round. The property won't use electricity on it. Installation is mandatory, but nobody uses it later.