Vertical air conditioning is the most suitable way to regulate the temperature of large space, such as large living room or business place.When choosing, attention should be paid to whether there is a negative ion transmission function, because it can clean the air and ensure health. Some vertical cabinet air conditioners have mode locking function, and the operation status is controlled by the host. It will be more useful for business places or families with children in the home, and can avoid unnecessary damage. In addition, it is also important whether the range of air supply is far enough and wide enough. The furthest distance of vertical air conditioning air supply can be more than 15 meters, plus wide angle air supply, it can take into account larger area.