Underwood and Hartzell

Underwood Air Systems


Industrial Ventilation Specialists since 1938


Serving Atlanta and the World for Over 80 Years

Why Choose Underwood?

When you work with Underwood Air Systems, you not only benefit from 80+ years of industry experience, but you can also count on us to provide top products from the best brands in the industry. The Hartzell name has been synonymous with quality air movement. Through the years, Hartzell has continually been recognized as having one of the broadest product and service lines in the air moving industry.


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  • (404) 505-2500


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Hartzell is the industrial ventilation expert producing high quality, efficient, and innovative ventilation solutions for a wide variety of industries and applications. Products include fans for general and process ventilation including a complete line of axial and centrifugal fans and blowers, an extensive fiberglass product line, direct gas-fired products, as well as a full range of options and accessories.

Learn more below or click here to download a brochure on Hartzell products.