The Birdwell product line provides custom engineered and built severe duty and explosion proof HVAC, pressurization and chemical air filtration equipment. Birdwell equipment is constructed of heavy duty, non-corrosive materials for hazardous and industrial applications. Since its inception in 1959, The Birdwell Company has engineered and manufactured rugged, corrosion resistant equipment with a track record of safety and reliability. There is Birdwell equipment in the field today that has been operating for more than 30 years.

Founded in 1978, the Marc product line provides both custom and pre-engineered HVAC equipment for a wide array of hazardous and industrial applications. Innovation and flexibility within the Marc product line provide a solution for a variety of projects around the globe. The Marc product line provides a cost effective solution for your specific application.

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Shield Air offers one of the most expansive suite of products and services in the industrial and explosion proof HVAC industry.

Model BPU Series - Pressurization Units Brochure