Standard filter cartridges for the Manhole Odor Eliminator contain activated carbon based filter media. Other media can be installed depending on what odor causing gasses are present in the manhole.
Color Indicating Media
Hydrogen Sulfide (H2S) detecting media is available for the Manhole Odor Eliminator. This media changes color depending on the concentration of H2S it has been exposed with. Examining the media when changing the filter cartridge helps set the maintenance schedule to maximize filter life.
Please contact us for more information.