Hydrogen Sulfide (H2S)- may have rotten egg smell; heavier than air. Air monitors alarm at 10 ppm (low) and 20 ppm (high).
Carbon Monoxide (CO)- tasteless, odorless, and colorless. Air monitors alarm at 35 ppm (low) and 70 ppm (high)
Sulfur Dioxide (SO2)- colorless, heavy gas, sometimes smells like a just-struck match. Air monitors alarm at 2 ppm (low) and 4 ppm (high).
Carbon Dioxide (CO2)- colorless gas; product of combustion, fermentation, and respiration. Air monitors alarm at 0.5 (low) and 1.00 (high)
Oxygen (O2)- odorless, colorless, tasteless; nonmetallic element essential to living organisms. Air monitors alarm at 19.40 (low) and 23.5 (high). Low levels of O2 or high levels of O2 can cause health effects or death.
**Report monitor events to your supervisor or the IH Team to ensure you and your workplace remain safe**
