Manufacturers of AIR ENGINEERING SYSTEMS including Room conditions (temperature - humidity - dust levels - cleanliness - pressurization), Process conditions (temperature - humidity - filtration - pressure - velocity), Waste handling, Machinery cleaning, Process controls (Digicontrol), and much more.

• See also:
• Masterformat 2004
• 23 09 33 - Electric and Electronic Control System for HVAC
• 23 20 00 - HVAC PIPING AND PUMPS
• 23 21 13 - Hydronic Piping
• 23 21 23 - Hydronic Pumps
• 23 22 13 - Steam and Condensate Heating Piping
• 23 22 23 - Steam Condensate Pumps
• 23 23 00 - Refrigerant Piping
• 23 25 00 - HVAC Water Treatment
• 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 35 13 - Sawdust Collection Systems
• 23 36 00 - Air Terminal Units
• 23 36 13 - Constant-Air-Volume Units
• 23 36 16 - Variable-Air-Volume Units
• 23 37 00 - Air Outlets and Inlets
• 23 37 13 - Diffusers, Registers, and Grilles
• 23 37 23 - HVAC Gravity Ventilators
• 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 80 00 - DECENTRALIZED HVAC EQUIPMENT
• 23 81 00 - Decentralized Unitary HVAC Equipment
• 23 81 13 - Packaged Terminal Air-Conditioners
• 23 81 16 - Room Air-Conditioners
• 23 81 26 - Split-System Air-Conditioners
• 23 84 00 - Humidity Control Equipment
• 23 84 13 - Humidifiers
• 23 84 16 - Dehumidifiers
• 23 84 19 - Indoor Pool and Ice-Rink Dehumidification Units
• 25 00 00 - INTEGRATED AUTOMATION
• 44 11 16 - Fugitive Dust Barrier Systems
• Masterformat 1995
• 15180 - Heating and Cooling Piping
• 15700 - Heating, Ventilating, Air Conditioning Equipment
• 15730 - Unitary Air Conditioning Equipment
• 15750 - Humidity Control Equipment
• 15800 - Air Distribution
• 15810 - Ducts
• 15820 - Duct Accessories
• 15840 - Air Terminal Units
• 15850 - Air Outlets and Inlets
• 15860 - Air Cleaning Devices
• 15915 - Electric and Electronic Control
• 15935 - Building Systems Controls