Is the summer air conditioning wind-up or down-blowing effect good?

Blowing upward is better.

1. Because the ratio of cold air is more important than hot air, so summer air conditioning, if you do not choose swing mode, it is best to blow the fan blade upward, so that the air can be circulated, and the overall environment will become cooler.

2. Air conditioning directly blows down to the body, which is easy to cause colds, and also easy to cause air conditioning disease.