cigarette smoke as an example of semi- volatile liquidLCS Laboratory offers testing of Carbon Dioxide levels (CO2) in residential air as a part of our Indoor Air Quality (IAQ) screening survey. CO2 is a natural component of clean outdoor air with a typical concentration of about 400 parts per million (ppm).

Indoor Carbon Dioxide comes from two different sources: Metabolic CO2 produced by breathing; and CO2 formed as a product of combustion (ex. fuel, tobacco, candles, natural gas, heating oil, kerosene, wood etc.).

The typical comfort level for carbon dioxide is somewhere below 1100 – 1500 ppm. At this concentration of CO2, tenants typically have no complains about their air quality.  Health Canada recommends the highest safe level of Carbon Dioxide is at 3500 ppm, at this concentration, only limited health effects can be detected (Health Canada. Exposure Guidelines for Residential Indoor Air Quality. 1987, ISBN: 0-662-17882-3).

The effect of Carbon Dioxide levels in your home can be better understood in connection with other parameters: such as Carbon Monoxide and Humidity levels that are tested as a part of our extensive Indoor Air Quality screening. To learn more about this service, please visit the IAQ webpage

Share this article: