Numbers and Titles



Includesdevices of a variety of types to clean distribution air.
Alternate Terms/AbbreviationsHEPA: high efficiency particulate air (filter). ULPA: ultra low penetration, air (filter). SULPA: super ultra low penetration, air (filter).
See23 31 00 for HVAC ducts and casings. 23 35 13 for sawdust collection systems. 44 11 00 for particulate control equipment.
23 41 00Particulate Air Filtration
23 42 00Gas-Phase Air Filtration
23 43 00Electronic Air Cleaners