44.13.00 Gaseous Air Pollution Control Equipment
44.13.81 Condensation Systems
44.13.11 Spray Tower/Chamber Absorption Equipment 44.13.13 Packed Tower/Chamber Absorption Equipment 44.13.14 Tray Tower Absorption Equipment 44.13.16 Jet Bubbling Reactor Equipment 44.13.17 Venturi Absorption Equipment 44.13.20 Vacuum Extraction Systems 44.13.31 Powdered Injection Adsorption Equipment 44.13.33 Fluidized Bed Adsorption Equipment 44.13.34 Fixed Bed Adsorption Equipment 44.13.36 Rotary Bed Adsorption Equipment 44.13.39 Radial Bed Adsorption Equipment 44.13.51 Thermal Oxidation Equipment 44.13.53 Catalytic Oxidation Equipment 44.13.56 Flare Oxidation Equipment 44.13.59 Claus Sulfur Recovery Equipment 44.13.71 Thermal Reduction Equipment 44.13.73 Catalytic Reduction Equipment 44.13.76 Non-catalytic Reduction Equipment 44.13.77 Selective Non-catalytic Reduction Equipment 44.13.81 Condensation Systems 44.13.83 Contact Condensing Equipment 44.13.86 Solvent Recovery Equipment 44.13.91 Biofilter Media 44.13.93 Fixed Bed Biofilter Equipment 44.13.96 Fixed Bed Biotrickling Filter Equipment 44.13.97 Fixed Bed Bioscrubbing Equipment