Tesla has changed the situation when it comes to HVAC systems (heat ventilation and air conditioning). Only one large air valve passes 

through Teslas dashboard. While the main vent opens the air straight ahead

 there is another duct below it that blows the air upwards. The angles of the two airflows affect how 

the ventilation system is tuned. At least there are no switches or buttons inside 

 the Tesla so you need a touch screen to adjust the air ducts. You can use

the high-resolution simulation images on the touch screen to precisely

adjust the airflow. Detailed photos of Tesla show that air is 

 quickly close the door and move to one side to complete the counter action.