The design, manufacture, and sale of centrifugal compressors (blowers and exhausters), vacuum cleaning systems, liquid filtration equipment, and waste handling systems have been the hallmark of Hoffman for nearly 100 years.

• See also:
• Masterformat 2004
• 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
• 33 30 00 - SANITARY SEWERAGE UTILITIES
• 33 31 00 - Sanitary Utility Sewerage Piping
• 33 32 13 - Packaged Utility Lift Stations
• 33 32 16 - Packaged Utility Wastewater Pumping Stations
• 33 32 19 - Public Utility Wastewater Pumping Stations
• 33 34 00 - Sanitary Utility Sewerage Force Mains
• 33 39 13 - Sanitary Utility Sewerage Manholes, Frames, and Covers
• 33 39 23 - Sanitary Utility Sewerage Cleanouts
• 44 13 00 - Gaseous Air Pollution Control Equipment
• Masterformat 1995
• 02530 - Sanitary Sewerage
• 11200 - Water Supply and Treatment Equipment
• 15830 - Fans