OMI-2 indicating purifier irreversibly removes contaminants from carrier gases. It effectively purifies helium, hydrogen, nitrogen, argon/methane, and ammonia.

• Glass body does not diffuse air or off-gas
• Ideal for Hall®, ECD, and GC/MS detection systems
• Color change provides positive indication of purifier exhaustion
• Improved design prevents air from entering the new tube, preserving the resin

Indicating purifier removes oxygen, water vapor, carbon monoxide, carbon dioxide, most sulfur compounds, most halogen compounds, alcohols, and phenols to less than 109 ppb.

Indicating purifier for point-of-use gas polishing and final visual quality assurance before gas enters the GC. As little as 1 ppm of oxygen or moisture will change the indicating resin from black to brown.