With the increasing interest in proper ventilation relative to thermal comfort, Carrier aims to provide superior ventilation systems.

· Carrier's ComfortID control system provides the right amount of ventilated air, in the right place, at the right time – instantly – allowing multi-zone buildings such as schools, health care facilities, office buildings, shopping centers and multi-story buildings to minimize energy and maintenance costs, while providing a healthy environment for tenants. This minimizes waste and maximizes energy cost savings.

· Microprocessors evaluate data collected from sensors placed throughout a building, interpret the information, and direct the appropriate HVAC response, controlling functions like outdoor air intake, damper position and fan speed. Unlike analog, pneumatic and some other DDC (Direct Digital Control) systems, ComfortID provides continual, flexible performance without requiring expensive service calls necessary with other "custom programmed" control systems.

· When carbon dioxide (CO2) sensors are strategically placed in a building, ComfortID helps facility managers meet the ventilation requirements of the American Society of Heating, Refrigeration and Air Conditioning Engineer's (ASHRAE) standards 62-1989 and 62a-1990.