Brian Hans,
PE, LEED AP

Brian is known for engineering mechanical systems that perform reliably in the most demanding healthcare and mission critical environments. He brings more than two decades of experience and a calm, solutions-focused approach that helps clients make informed decisions about complex HVAC and infrastructure challenges. 

His portfolio spans laboratories, hospitals, data centers, clean rooms, industrial facilities, convention centers, and large-scale central plants. Brian’s technical expertise includes HVAC design, plumbing and piping systems, industrial and pollution control exhaust, HEPA filtration systems, thermal storage, cogeneration facilities, and fire and life safety systems. He has contributed several industry innovations, including helping implement the first displacement ventilation system used in patient care areas in a California hospital, a solution that advanced both energy performance and indoor air quality. He has also worked internationally, teaching construction techniques to teams in China and supporting projects across Asia and North America. 

Brian’s work directly supports Mazzetti’s Benefit Mission by advancing sustainable, high-performing systems that reduce energy use, strengthen reliability, and contribute to healthier environments. He is committed to practical engineering that improves long-term building performance and supports the clients, patients, and communities that those facilities serve.