Public-facing information about CO2 monitors

Community science with CO2 readings 

Community science can be both fun and educational! There are currently two known apps that allow CO2 monitor users to share CO2 data they collect. 

Disclaimer: CAVI is not affiliated with either application, and caution must be taken with interpreting and reporting CO2 findings as this data will vary depending on the occupancy of an indoor space over time, in addition to other environmental factors. 

Recommended reading on improving indoor air quality

Allen, D., Anderson, D., Chowdhary, S., Cole, K., Duckett, S., Holden, R., MacIntyre, R., Monty, J., Nunes-Vaz, R., Phelps, K., Powers, K., & Suss, M. (2021). Creating safe workplaces during the Covid-19 pandemic.

Canadian Centre for Occupational Health and Safety. (2021, July 29). Indoor Ventilation: Guidance During The COVID-19 Pandemic. Canadian Centre for Occupational Health and Safety.

CDC. (n.d.). Interactive Ventilation Tool. Retrieved February 9, 2022, from

Health Canada, Water and Air Quality Bureau, Health Environments and Consumer Safety Branch. (2018). Ventilation and the indoor environment (No. H144-54/1-2018E-PDF).

Masks4Canada. (n.d.). Masks4Canada Room Ventilation and Filtration Guide and Tip Sheet. Retrieved November 4, 2021, from

Nelson, A. (2022, March 23). Let’s Clear The Air On COVID. The White House Office of Science and Technology Policy Briefing Room Blog.

Public Health Agency of Canada. (2021, March 19). COVID-19: Improving indoor ventilation [Education and awareness].

Rhode Island Department of Health. (n.d.). Preventing the spread of COVID by circulating air in schools and other buildings. Retrieved August 18, 2022, from

Recommended reading on CO2 monitors and indoor air quality

Baraniuk, C. (2022). Airborne transmission: Are CO2 monitors a long term solution or “pandemic hack?” BMJ, 376, o736.

Eykelbosh, A. (2021). Indoor CO2 Sensors for COVID-19 Risk Mitigation: Current Guidance and Limitations (ISBN: 978-1-988234-58-8). National Collaborating Centre for Environmental Health.

National Education Union (UK). (2021). Use of CO2 monitors (with technical and non-technical infographics). Use of CO2 Monitors.

Persily, A., Bahnfleth, W. P., Kipen, H., Lau, J., Mandin, C., Sekhar, C., Wargocki, P., & Nguyen Weeks, L. C. (2022). ASHRAE Position Document on Indoor Carbon Dioxide.

Poppendieck, D. (n.d.). Consumer IAQ Monitors. Retrieved November 4, 2021, from