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Environment, Health, Safety & Security

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Personal protection against H2S exposure

| By Mary Page Bailey and Gerald Ondrey

The new ARA H2S single-gas detector (photo) is designed to protect users from toxic levels of exposure to hydrogen sulfide. Classed as an item of personal protective equipment (PPE), the ARA H2S is completely maintenance-free and offers continuous monitoring of exposure to H2S levels. It offers a choice of display for users, either a lifetime countdown or concentration lifetime exposure, and it is possible to switch between the two, if desired. The ARA H2S can also provide short term exposure limits (STEL) or eight-hour, time-weighted average (TWA) readouts for greater visibility into the overall health of a worker. Once activated, the ARA H2S detector will continuously operate until the end of a two-year period, giving users appropriate warnings to source a replacement. There is also the option for a three-year lifespan model, which offers a hibernation mode, ideal for users who only visit the site on occasion. — ION Science Ltd., Royston, U.K.