Interpreting your results

What are typical breath sample results for non-smokers and people who smoke?

The carbon monoxide levels in your breath are measured in parts per million (or ppm). Breath carbon monoxide levels for non-smokers and people who smoke vary, but usually the levels are:

• 6 ppm or lower is typical for non-smokers 
• 10 ppm or higher is typical for smokers

Breath carbon monoxide levels of 7, 8, or 9 ppm could be from smokers or non-smokers. Non-smokers could have these levels if high levels of carbon monoxide are in the air around them. Smokers could have these levels if they stop smoking for an extended period of time. 

Note that in addition to cigarettes, carbon monoxide is a result of all burning inhaled products (including cigars and marijuana). In contrast, inhaling products that do not burn (including e-cigarettes and vaporizers) does NOT produce carbon monoxide. 

What do the colored bars and numbers in the Carbon Monoxide log mean?

Each of your breath sample results is shown with a colored bar and a number. The colors and numbers go together as follows and are measured in parts per million (ppm):