How to use air conditioning more healthy?

"1 Open the window regularly for 30 minutes in the morning and evening to maintain indoor air circulation (turn off the air conditioner when opening the window). 2 In winter and spring, the dehumidification function can be activated for 60 minutes every day to keep the indoor dry and cool. During heating, the air guide plate forms a thermal circulation downward, The temperature can be adjusted quickly and evenly. When cooling, the air guide plate is horizontal, which can avoid the direct blowing of cold air. 3 When you fall asleep, press the sleep run key to avoid getting cold. 4 When there are old people and children at home, try to use soft wind operation."