The number of breaths in a normal mood is one minute.

Does the subject want to ask "how many times does a person breathe a minute when his mood is normal?" 12 to 20 times.

Adults breathe 12 to 20 times per minute in a normal mood. It should be noted that the number of breaths will be affected by many factors, such as age, gender, physical condition, environmental temperature, exercise state and so on.