What mode of air conditioning is the healthiest in summer?

Choosing refrigeration mode can increase or decrease the temperature and wind speed of refrigeration. The air conditioner operates in the cooling mode according to the artificially selected temperature and wind speed, so as to reduce the air temperature (and simultaneously discharge the condensed water). The air conditioner operates in dehumidification mode according to the automatically set low temperature and wind speed to remove water vapor from the air (and blow out cold air at the same time).