Because healthy airflow has the same function as health, when you press the button, a green leaf sign will be displayed on the air conditioner, so that the healthy airflow can be turned on, and the air conditioner will release a large number of healthy negative ions to maintain the indoor air quality, and the oxygen content will reach the level required by the human body.
The principle of healthy air flow in air conditioning: the principle that cold air is heavy and hot air is light is used. When cooling, blowing upward can avoid cold air and blow directly to the human body. In addition, cold air is conducive to the circulation of upper and lower air, and blowing hot air downward during heating is more comfortable for people.