A CO2 detector isn’t just a nice thing to have, it is mandatory in all homes within Ontario. CO2 detectors provide protection to the residents of a home by alerting them to the presence of CO2 within the home. This is crucial as CO2 is colourless, odourless, and tasteless all while being poisonous to humans. Not having a CO2 detector in your home could result in a tragic and preventable loss of life.