Even the stuff on the shelf now does some cool things....
I witnessed an emissions test on a Mine Gator ( yes a modified JD Gator ) fitted with a PBX scrubber. I wasn't watching that close because its not my job. But some of the tests for C0, HC and NX didn't read on the Dreagar tubes. This was on a machine with only 50 hours in a constant state of top notch care because its the Ambulance for Div 6....