- 11 11 00 - Vehicle Service Equipment
- 11 11 13 - Compressed-Air Vehicle Service Equipment
- 11 11 19 - Vehicle Lubrication Equipment
- 11 11 23 - Tire-Changing Equipment
- 11 11 26 - Vehicle-Washing Equipment
- 11140 - Vehicle Service Equipment
- 15700 - Heating, Ventilating, Air Conditioning Equipment
- 15720 - Air Handling Units
- 15800 - Air Distribution
- 15810 - Ducts
- 15820 - Duct Accessories
- 15830 - Fans
- 15860 - Air Cleaning Devices
- 23 12 16 - Facility Gasoline Dispensing Pumps
- 23 30 00 - HVAC AIR DISTRIBUTION
- 23 31 00 - HVAC Ducts and Casings
- 23 31 13 - Metal Ducts
- 23 31 16 - Nonmetal Ducts
- 23 33 00 - Air Duct Accessories
- 23 33 46 - Flexible Ducts
- 23 34 00 - HVAC Fans
- 23 34 13 - Axial HVAC Fans
- 23 34 16 - Centrifugal HVAC Fans
- 23 34 23 - HVAC Power Ventilators
- 23 34 33 - Air Curtains
- 23 35 13 - Sawdust Collection Systems
- 23 40 00 - HVAC AIR CLEANING DEVICES
- 23 41 00 - Particulate Air Filtration
- 23 41 33 - High-Efficiency Particulate Filtration
- 23 41 43 - Ultra-Low Penetration Filtration
- 23 43 00 - Electronic Air Cleaners
- 23 50 00 - CENTRAL HEATING EQUIPMENT
- 23 60 00 - CENTRAL COOLING EQUIPMENT
- 23 70 00 - CENTRAL HVAC EQUIPMENT
- 23 73 13 - Modular Indoor Central-Station Air-Handling Units
- 23 73 23 - Custom Indoor Central-Station Air-Handling Units
- 23 74 00 - Packaged Outdoor HVAC Equipment
- 23 75 00 - Custom-Packaged Outdoor HVAC Equipment
- 23 80 00 - DECENTRALIZED HVAC EQUIPMENT
- 44 11 00 - Air Pollution Control Equipment
- 44 11 16 - Industrial Dust Collectors