Shield Air Solutions, Inc. was formed in 2009, uniting The Birdwell Company and Marc Climatic Controls, two of the leaders in the explosion proof HVAC industry. With this combination, Shield Air formed a global leader in the design and manufacture of explosion proof, hazardous, severe duty HVAC equipment, air filtration, air handling equipment, supply fans, and exhaust fans. With nearly 100 years of collective experience, Shield Air can provide a custom engineered solution for your specific application.