Does the air conditioner have ventilation function?

Most air conditioners have ventilation function, but the specific implementation and effect vary with brands and models. Generally speaking, the ventilation function of an air conditioner can be realized by setting two modes of "automatic wind direction" and "automatic ventilation". In these modes, the air conditioner will automatically adjust the wind direction and speed, expel the indoor air and introduce fresh air to keep the indoor air fresh and comfortable. Some high-end air conditioners are equipped with air purifiers and negative ion generators, which can further improve indoor air quality.