Carbon Monoxide is a poisonous gas we can’t see, we can’t smell & we can’t taste. It is also often referred to as a “silent killer”. When inhaled, it displaces oxygen in the bloodstream, which starves the brain, heart and other organs of necessary oxygen. At certain levels, it can quickly cause loss of consciousness, brain damage or even death. Carbon monoxide is, to say the very least, an extremely dangerous gas. CO detectors are designed to measure CO levels over time and sound an alarm before dangerous levels of CO accumulate in an environment, giving people adequate warning to safely ventilate the area or evacuate. Some system-connected detectors also alert a monitoring service that can dispatch emergency services if necessary