Construction of the $155m MidMichigan Medical Center in the US has begun with an emphasis on energy efficiency and environmental sustainability.

The 280,000ft² project will have new operating rooms, private patient rooms and an atrium-style entrance and lobby.

The project follows building standards from the US Green Building Council’s programme for Leadership in Energy and Environmental Design (LEED).

The system controls infection, converts hazardous biological and chemical pollutants into harmless compounds, saves energy and reduces maintenance.

Each of the operating rooms will feature a room pressure monitor so that the air pressure inside the room can be adjusted according to whether it is occupied, unoccupied or being cleaned.

In the project’s first phase, six new operating rooms are expected to open in December 2010 and the whole project is expected to be finished in 2012.