Coltri MCH-6 Air Quality

[SurfLung]

Coltri MCH-6 Air Quality - Click the video link
https://youtu.be/3KL8pQ41rjw?si=4dFJFAchCuZkAetU
This 1980s Coltri MCH6 Scuba compressor is equipped with a Back Pressure Regulator (BPR - similar to a PMV) and is using a fresh "Breathing Air" filter from Lawrence Factor. The pumped, condensed, drained, and filtered air leaves the fill whip un-pressurized and passes over moisture detecting dots that register from 10-60% moisture. Pink is moisture. Blue is no moisture. In addition there is a Carbon Monoxide (CO) detecting disk that will turn black if CO is present. As you can see, the dots are all blue and the disk stays brown... So, there's NO MOISTURE and NO CO in my Coltri MCH-6 air.