Gas Filters

Typical, commercial-grade, activated carbon air filters are designed to remove many common vapor contaminants but they are not designed to effectively protect against many deadly CBRN agents that could potentially be used during acts of terrorism. The full range of CBRN agents can only be effectively removed by using filters with specially treated carbon.

• A carbon adsorption filter removes molecules from the airstream by the process of adsorption, trapping molecules in the pores of the carbon granules
• The most effective activated carbon adsorption filter medium to protect against the effects of toxic CBRN agents is a highly activated carbon impregnated with metal salts and an alkaline solid, trietheylenediamine (TEDA)
  • The two most common metal impregnated carbons used in the western world are ASC-TEDA (copper-silver-chromium-TEDA) and ASZM-TEDA (copper-silver-zinc-molybdenum-TEDA) military-grade activated impregnated carbon
  • ASC-TEDA is no longer used in the U.S. due to its chromium content
  • ASZM-TEDA, patented by the U.S. Army, offers the best chemical protection available. It is the only grade of carbon deemed acceptable for collective and personal CBRN protection systems and devices by the U.S. Army.
• No other filters provide protection from as wide a range of chemical and biological threats as NERO filters and filter systems
  • Through NERO’s Applied Research Center, and joint development and testing efforts with the U.S. Army, NERO continues to develop effective filtration technology to protect against an even wider range of chemicals, including the most common and dangerous Toxic Industrial Chemicals/Toxic Industrial Materials (TIC/TIMs)
  • All NERO filters (developmental and production) are tested by the U.S. Army Edgewood Chemical Biological Center (ECBC), the nation’s principal research and development resource for non-medical chemical and biological (CB) defense
• Filters can be ordered with specialized media for custom applications