Acid Gas Scrubbers – air handling systems built to remove acid gases typically from air exhausted from various industrial processes
Air Pollution Scrubbers, Air Scrubber – systems built to remove contaminants from air utilizing water and/or chemicals.
Ammonia Scrubbers – specially engineered air handling systems to remove ammonia gas from an air steam.
Ejector-Venturi Scrubbers – specially constructed scrubbers engineered with a dual purpose water jet for both scrubbing and inducing air flow.  The advantage of this system is the elimination of a blower for air movement.
ETO Scrubbers – EO Scrubbers – Ethylene Oxide Scrubbers  – specially engineered systems for removing ethylene oxide from air/inert gas exhausted from a sterilization process, typically carried out in hospitals or commercial sterilizer facilities.
Exhaust Scrubbers – air handling systems built to remove contaminants from air exhausted from various industrial processes.
Emergency Scrubbers – air handling systems designed to exhaust and treat toxic gas produced from an accidental chemical release.
Fume Scrubbers – air handling systems built to remove fumes from air exhausted from various industrial processes. 
Gas Absorption – the transfer of a gas into a liquid by the process of diffusion.
Gas Adsorption – the transfer of a gas to the surface of a solid by the process of diffusion.
HCL Scrubbers – Hydrochloric Acid Scrubbers – air handling systems specially designed to remove hydrochloric acid fumes from an air steam.
Mist Eliminators – a device for removing liquid droplets entrained in an air stream, often part of the air exit area of a wet scrubber.
NO×  Scrubbers – Nitrogen Oxide Scrubbers – engineered systems to remove Nitrogen Dioxide and/or Nitric Oxide gases exhausted from various industrial processes.
Odor Control Scrubbers – air handling systems designed to address nuisance odors generated from food, fragrance, sewage, or other process.
Packed Tower Scrubbers – cylindrical towers sized according to need from 8” diameter to 12’ diameter filled with structured or random dump packing engineered to remove contaminants typically from an air stream.
Particulate Scrubbers – air handling systems built to remove particulate matter from an air stream using water.
Venturi Scrubbers – a specific type of high velocity particulate scrubber that forces air and water droplets together through a narrow opening. 
Wafer Scrubbers – typically a small gas cleaning device for abatement of toxic gases exhausted from CVD reactors.
Wet Scrubbers – air handling systems designed to remove contaminants from an air stream using water or an aqueous chemical solution.