It is said that blowing a fan is healthier than turning on an air conditioner, but turning on a fan is generally in a ventilated environment, which is conducive to the inflow of fresh air and is relatively good for the body;
Generally, the air conditioner is turned on in a closed space without opening the window. After a long time, the indoor air is not fresh, which is not good for your health. Although the central air conditioner in a large space is equipped with equipment to supplement fresh air, it is easy to accumulate dust in the air duct, breed bacteria and viruses, pollute the indoor air, and is not good for the health. Moreover, the low temperature environment caused by air conditioning is easy to cause indoor air conditioning diseases.
So it's better to be natural wind.