Rain proof vent.

This is a vent I designed that can be installed on an external wall and not let driving rain through. It was printed and installed on a house boat to vent the fridge cavity but could be used for many applications. The idea is that there is no direct path through the vent meaning any water will hit the underside of the vane and then drain through a series of holes to the bottom and then out. The inner vanes are higher than the outer so if it becomes overlaoded with rain, it will overflow back out