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Known as the “Silent Killer,” H2S is highly flammable and toxic, even at low concentrations. It can easily build up in low-lying areas and confined spaces, and can quickly overcome unprepared workers.

Hydrogen sulfide (H2S), often called “the silent killer” is a colorless gas that can only be smelled at low concentrations. When the concentration is high enough, it deadens your sense of smell so you don’t even know it’s there.

Are your workers and business protected against the potential dangers of hydrogen sulfide (H2S) exposure? It may surprise you that subjection to the toxic “sour” gas remains one of the leading causes of workplace gas inhalation deaths, and OSHA recently cited a Texas employer after H2S exposure in a confined space resulted in a fatality.