A heated air curtain above an open doorway not only gives a welcoming warmth to anyone entering from the street, but also provides an effective barrier against the outdoor elements. Heated or unheated, air curtains are an excellent insect deterrent, and by effectively separating the indoor and outdoor atmospheres they allow doors to be left open, making them ideal for kitchens or cold-rooms. Avon can custom make Air Curtains or can supply a range of standard models.