Does an air-conditioned bedroom need an exhaust fan?

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Does an air-conditioned bedroom need an exhaust fan? ?

Many people wonder about this because they have installed an exhaust fan but do not use it, allowing dust to collect. Here is an explanation by analogy:

Think of air as a fluid, like water. A room without an exhaust fan is like a basin of stored water. If water is not drawn out or circulated, it can deteriorate. Drawing it out to encourage circulation is beneficial, but fresh water must also enter to replace it.

Everything has advantages and disadvantages. Installing an   exhaust fan   has the following effects:
Advantages of an exhaust fan    It promotes air circulation and brings in replacement air, making the room feel fresher.
Disadvantages of an exhaust fan    The air conditioner has to provide more cooling because incoming air brings heat. The inlet may need a filter to remove outdoor dust.

Thus, for a room with few occupants and no odour problems, such as a bedroom,   the source suggests that an exhaust fan need not be running, based on its assumption that leakage through door and window frames supplies enough breathing air. It also suggests leaving a meeting-room exhaust fan off while the air conditioner precools the empty room, then switching it on when many people arrive.
We hope this explanation is useful and answers some of your questions. If you are interested and    you can contact us.