Williams: Air Curtains.....
Williams Air Curtains are the most effective barrier available for keeping building environments free of airborne contaminants and keeping conditioned air inside where it belongs. As a crucial component of any heating or cooling system, air curtains allow for free movement of people and merchandise, while preventing the loss of conditioned air. They also prevent hot air in the summer, or cold air in the winter, from penetrating the building and disrupting the system performance and raising or lowering the standing temperature.
In areas when clean air and hygiene are required, such as hospitals, restaurants and food prep environments, air curtains keep insects, gas fumes and other harmful airborne contaminants out, keeping people and their food safe.
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