Portable Carbon Monoxide (CO) Monitors H5 High Efficiency (HE) Filter -

High Efficiency (HE) Filter - The filter media removes up to 99

H50XX12CALCAF

GORE-TEX PYRAD® provides superior water and and water resistance

And you're really not sacrificing many other features - a single speed fan and removal of the vibration alarm are really the only things your team will probably notice

Portable Carbon Monoxide (CO) Monitors H5 High Efficiency (HE) Filter -Portable Carbon Monoxide (CO CO2) Monitors Portable CO Monitoring Intermittent or Continuous Sampling This portable airline monitor connects easily to a breathing air filtration source or ambient air pumps and monitors the air for CO or CO O2 content, depending on the model. The audible alarm (95dbA) and light will activate when the CO level exceeds 10ppm (5ppm Canadian). External alarm and lights signal the user if there are dangerous CO or CO O2