Q. Whats the benefits of door visors?

These door visors also shield from the sun. Leave the windows open in the snow rain wind sleet and hail thanks to a vent visor which is also called a rain guard rain visor door visor or window deflector. Because won't need to operate the air conditioner every time it rains throughout the summer using a vent visor can also help to save money on petrol and increase the fuel economy. A vent visor's ability to aerodynamically divert wind (like that of an airplane wing) and so reduce the wind resistance known as "drag" that hinders the vehicle's forward movement is another method in which it helps gas efficiency.