Confined spaces need a portable gas monitor if there is a chance of low oxygen, high carbon monoxide or other hazardous atmospheres. Hear how the air a worker breaths needs to be monitored. Portable gas monitors are highly sensitive and can detect high levels of carbon monoxide, hydrogen sulfate and other toxic gases. They can also detect low oxygen levels. Hear about best practices when using these important instruments. https://www.thesafetybrief.com/confined-spaces-with-hazardous-atmospheres/