The Astral Air line of air curtains produce downward air currents at door openings, separating workspace environments. The Astral Air units are available in 10 different widths to fit door openings from 3 to 12 feet wide. Both heated and unheated models are available. Heating options include electric, steam, and hot-water units. The air curtains are manufactured utilizing 16-gauge steel, with a durable, baked-on powder-coated finish.

Dynaforce, a Div. of Mars Air Systems, 14716 S. Broadway St., Gardena, CA 90248; 800-421-1266; www.dynaforce.com

Publication date: 12/19/2005