Air-conditioning, air cooling and ventilation apparatus and instruments; Geothermal-based HVAC units; Evaporators for air conditioners; Furnaces; Air purifying apparatus; Fibrous filtering media for general industrial use in the purification of air and industrial fluids; Electronic generator for use in controlling the amount of humidity in the air by creating, removing or circulating small water particles or water vapor in the air; Humidifiers; Humidifiers for household use; Energy recovery ventilators
Environmental Control ApparatusAir conditioning contractor services; Air duct cleaning services; Basement waterproofing; Boiler cleaning and repair; Building construction services; Building construction supervision; Building construction, remodeling and repair; Building maintenance and repair; Building sealing and caulking services; Electrical contracting; Electrical contractor services; Heating contractor services; Heating equipment installation and repair; Home energy assessment services for the purpose of determining home improvements needed to improve energy use and efficiency; HVAC contractor services; Installation and maintenance of solar energy based power plants; Installation and maintenance of solar thermal installations; Installation and repair of air conditioning apparatus; Installation and replacement service for heating, ventilating and air conditioning systems; Installation and replacement service for water heaters; Installation of geothermal energy based power plants; Installation, repair and maintenance of condensing apparatus, steam condensers, radiators for motors and engines, air reheaters, boiler tubes; Installation, repair and maintenance of heating equipment; Maintenance and repair of heating installations; Mechanical contractor services; Plumbing; Plumbing and gas and water installation; Plumbing contractor services; Plumbing services; Repair and installation services, namely, the installation of heating, cooling and environmental control systems primarily using solar energy, renewable energy resources and rainwater; Repair or maintenance of boilers; Repair or maintenance of gas water heaters
Building Construction and Repair