CMHC Recommends Carbon Monoxide Monitoring

Did you know that your fireplace produces carbon monoxide, whether it's gas or wood burning? Also, having an attached garage can greatly increase the concentration of carbon monoxide in your home ( If you live in a high density area or near traffic intersections, your indoor levels of CO can be greatly affected as well. In fact, you might have high levels of CO in your home and not even know it. Because carbon monoxide is produced from the oxidation of fossil fuels, it is often thought to have a distinct odour. However, the truth is that CO is odourless at any concentration, and a health concern at even low concentrations.

What can unmonitored exposure to Carbon Dioxide do to your health?

Heavy exposure to CO(1600ppm) can cause death within an hour. However, even in less extreme concentrations, prolonged exposure to CO can impact your health. For instance, exposure to even concentrations as low as 30ppm can produce flu-like symptoms like headache, runny nose, sore eyes etc. These symptoms are often not attributed to CO so the CO exposure goes undetected for long periods of time. Because of this, several government agencies suggest monitoring indoor levels of carbon monoxide, including the Canadian Home and Mortgage Corporation (

Why not just install Carbon Monoxide Detectors?

Having CO detectors in your home is definitely better than not having anything at all, but detectors only sound a warning after a specific concentration level has been reached for a prolonged period of time. Futhermore, those standards are set by the device manufacturer, not by you. Finally, without continuous monitoring, how do you know that the detector is working?

What can Aretas do for you?

If you want more control over the pollutants entering your home, talk to one of us at Aretas. Aretas' suite of products can continuously monitor for carbon monoxide in addition to a host of other pollutants, unlike detectors which only sound an alarm after an unacceptable concentration has been detected for a prolonged period of time. Aretas products allow you, the user, to decide what your own tolerance level is, monitor the levels, and asses the risks of exposure. With continuous monitoring you can also find and reduce sources of CO.

Contact us for more information and pricing.

Sources: T. H. Greiner, Carbon Monoxide Poisoning (AEN-172) (Ames: Iowa State University of Science and Technology, 1997).