The outside wall air intake is a fresh and exhaust air diffuser for wall installation. The outside wall air intake is used to bring fresh air from below through wire mesh grille. The exhaust air is transported horizontally through a wire mesh at the front of the diffuser. This design prevents the fresh and exhaust air from mixing. It also prevents water contained in the air from evaporating. The outside wall air intake is mounted outdoors and it can be converted from left-hand to right-hand mounting. Available in black and white.