9 Heating, ventilation and air conditioning equipment, namely, automatic air flow control valves; Controls for heating, ventilation, and air conditioning equipment and systems, and for controlling air temperature, air velocity, air volume, and air pressure, namely, pneumatic and electronic controllers, sensors, actuators and thermostats, namely, digital controllers, sensors, actuators and thermostats, and component parts and fittings for the foregoing controls; Control systems for heating, ventilation, and air conditioning equipment and systems comprised of electronic controllers, sensors, actuators and thermostats, and component parts and fittings for the foregoing control systems; Electronic controls for heating, ventilation and air conditioning systems comprised of air ducts, and one or more air duct components, air terminal units, air distribution equipment; Electronic controls for suspended ceiling elements, namely, suspension members, ceiling panels, integrated lighting fixtures, and diffusers; Computer software used to calibrate controls and control systems for heating, ventilation and air conditioning equipment and systems; Electronic controls for underfloor air distribution equipment, namely, floor grilles, floor diffusers, and underfloor air terminal units; Electronic controls for underfloor air distribution equipment, namely, pneumatic, electronic, and digital controls, sensors, actuators and thermostats, and component parts and fittings for the foregoing controls; Electronic control systems for underfloor air distribution equipment and systems comprised of one or more controls, sensors, actuators and thermostats, and component parts and fittings for the foregoing control systems; Automatic air displacement ventilation equipment, namely, supply air outlet valves, return air outlet valves, fan powered variable air volume supply air terminal valves, single duct exhaust air terminal valves, and component parts and fittings for the foregoing air displacement ventilation equipment; Air displacement ventilation systems comprised of one or more elements of the foregoing air displacement ventilation equipment; Electronic controls for air displacement ventilation equipment, namely, supply air outlets, return air outlets, fan powered variable air volume supply air terminal units, and single duct exhaust air terminal units; Electronic controls for air displacement ventilation equipment, namely, pneumatic, electronic, and digital controls, sensors, actuators and thermostats, and component parts and fittings for the foregoing controls; Computer software for use in selection of heating, ventilating, and air conditioning equipment; Computer software for the selection and custom design and development of heating, ventilation and air conditioning equipment and systems; Electronic controls for radiant heating and cooling equipment, namely, radiant panels, chilled sails, chilled beams, radiant heaters, and underfloor heating systems; Electronic controls for radiant heating and cooling equipment, namely, pneumatic, electronic, and digital controls, sensors, actuators and thermostats, and component parts and fittings for the such controls; Electronic control systems for radiant heating and cooling equipment comprised of one or more of the forgoing controls, sensors, actuators and thermostats, and component parts and fittings for the foregoing control systems; downloadable electronic publications, namely, catalogues in digital format in the field of heating, ventilation and air conditioning equipment and systems; downloadable electronic materials, namely, technical papers and reports in the fields of heating, ventilating, and air conditioning equipment and systems, and underfloor air distribution equipment and systems, and air displacement ventilation equipment and systems; Heating, ventilation and air conditioning equipment, namely, user programmed diffusers and variable air volume diffusers, and component parts and fittings for the foregoing heating, ventilation and air conditioning equipment