35640 - Blowers & Fans (Miscellaneous)
35643 - Centrifugal fans & Blowers
3564317 - - Centrifugal Blower-filter units
3564319 - - Centrifugal Fans >1.5 - 6.75 in. maximum total pressure
3564321 - - Centrifugal Fans >6.75 in. maximum total pressure
3564323 - - Centrifugal Furnace & Lightweight air-conditioning blowers
3564324 - - Centrifugal Industrial fans, excl blowers, Turbo-blowers & Multistage blowers
3564327 - - Centrifugal Positive displacement blowers
3564328 - - Centrifugal Turbo-blowers (Single stage, Single & Double inlet)
3564329 - - Centrifugal Multistage blowers
3564331 - - Centrifugal Small housed blowers (Utility sets)
3564339 - - Other Centrifugal fans & Blowers (incl Furnace blowers, Lightweight air-conditioning blowers & Turboblowers)
3564399 - - Centrifugal fans & Blowers (Miscellaneous)
35644 - Propeller fans & Accessories, Axial fans & Power roof ventilators
3564413 - - Propeller Axial fans: Directly connected to driver
3564415 - - Propeller Axial fans: Belt-driven
3564433 - - Propeller fans & Accessories: Industrial: Directly connected to driver
3564435 - - Propeller fans & Accessories: Industrial: Belt-driven
3564437 - - Propeller fans & Accessories: Penthouses, Shutters, Guards & other Accessories
3564439 - - Propeller fans & Accessories: Parts
3564441 - - Power roof ventilators group: Axial & Propeller type
3564443 - - Power roof ventilators group: Centrifugal type
3564445 - - Power roof ventilators group: Parts for Power roof ventilators
3564499 - - Propeller fans, Axial fans & Power roof ventilators (Miscellaneous)
35645 - Dust collection & other Air purification equipment for Heating, Ventilating & Air-conditioning systems (For cleaning)
3564531 - - Air washers
3564541 - - Electrostatic precipitation equipment
3564543 - - Air filters for Air-conditioners & Furnaces, etc., of =<2400 CFM
3564546 - - Other Dust collection & other Air purification equipment (incl Air filters for Air-conditioners & Furnaces) except parts
3564547 - - Parts for Dust collection & Air purification equipment
3564549 - - Dust collection & other Air purification equipment (General + Air filters for Air conditioners & Furnaces)
3564599 - - Dust collection & Air purification equipment (Miscellaneous)
35646 - Dust collection & other Air purification equipment for Industrial gas cleaning systems (For cleaning outgoing air)
3564610 - - Dust collection & other Air-purification equipment for Industrial gas cleaning systems (For cleaning outgoing air)
3564611 - - Dust collection & other Air purification equipment for Industrial gas cleaning systems (For cleaning outgoing air) except parts
3564620 - - Parts for Industrial air-purification equipment
3564621 - - Parts for Industrial air purification equipment
3564651 - - Electrostatic particulate emissions precipitators
3564654 - - Fabrics particulate emissions filters
3564655 - - Particulate emissions mechanical collectors
3564658 - - Particulate emissions wet scrubbers
3564667 - - Gaseous emissions control gas absorbers
3564668 - - Other Types of Industrial air pollution control equipment
3564672 - - Thermal & Direct oxidation gaseous emissions control systems
3564673 - - Gaseous emissions control scrubbers (Gas absorber)
3564674 - - Wet flue gaseous emissions control gas desulfurization systems
3564675 - - Dry flue gaseous emissions control gas desulfurization systems
3564676 - - Catalytic oxidation gaseous emissions control systems
3564699 - - Dust collection & other Air-purification equipment for Industrial gas cleaning systems for cleaning outgoing air (Miscellaneous)
3564XX0 - - Blowers & Fans (Miscellaneous - Volume)
3564XX2 - - Blowers & Fans (Miscellaneous - Speciality)