The Green building approach enables building owners and managers to reduce energy consumption, improve the work environment, and reduce the environmental impacts of building operations. Buildings must reduce operating costs, increase occupant productivity, and decrease health complaints,and be environmentally responsible to be considered a green building. To ensure this, HVAC systems have an important role to play since many of the green building factors are directly or indirectly affected by the performance of the HVAC systems. An integrated and holistic design process beginning at a project’s inception is required to optimize the HVAC design and operation for green buildings. A few new HVAC technologies have been used or considered at present. Currently, these technologies are being used successfully in some niche applications, and performance improvements will continue to drive down system costs and accelerate integration of the new systems within conventional HVAC systems. If green means happier tenants and healthier occupancy rates, more building owners will want to incorporate these technologies to gain a powerful market advantage. As a primary HVAC engineering company we at CES pledge to work building designers to bring this into reality and contribute to the green revolution.