Air purifying equipment dealers in Canton are organizations that sell or rent equipment that help purify and keep indoor air clean. These equipment could be used for residential, commercial or industrial purposes. These dealers also provide replacement air filters. For residential usage, options include home air cleaners, electrostatic furnace filters, whole house HEPA filters, chemical gas vapor filters, odor neutralizers, charcoal filters, dehumidifiers, negative ion generators, and air testing services. For commercial purposes, there are Biohazard HEPA filters, scanned 99.999% DOP HEPA filters and others. Industries use equipment and services such as vehicle exhaust removal, military, public works, plant emissions controls, dust collection systems, chemical vapor abatement, weld fume collectors, industrial vacuums, odor controllers, downdraft tables, backdraft booths, paint booths, bag houses, cartridge collectors, wet dust collectors, cyclone separators, air scrubbers, tub scrubbers and others. Many of these are necessary for pollution control.