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We manufacture the Minneapolis Blower Door™, Minneapolis DuctBlaster® Digital TrueFlow® Grid and DG-1000 and DG-8 gauges. Our mission is to help the industry diagnose issues - and deliver improved built environments, which are more comfortable, energy efficient, healthy and durable.
Our knowledge of building physics, reputation for innovative design, and excellent technical support have made us the leading manufacturer of performance testing tools for the building performance industries.