Health Impact Calculator

Discover how your indoor air quality affects your brain and body. This calculator uses data from the landmark Harvard COGFX study to estimate cognitive performance impacts from CO2 exposure, and assesses your Sick Building Syndrome risk.

Your Indoor Environment

Average Hours Indoors Per Day

Average American spends 90% of time indoors (~21.6 hrs)

Typical CO2 Level in Your Space (PPM)

Don't know? Most offices are 800-1200 ppm. Homes: 600-1000 ppm.

Do you have an air purifier?

Do you use a CO2 monitor?

Start Monitoring Your Air Quality

The first step to better air quality and cognitive performance is knowing your current CO2 levels. A quality CO2 monitor pays for itself in improved productivity.

Aranet4 Home CO2 Monitor

$189

Best accuracy. E-ink display. 2-year battery. The gold standard.

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INKBIRD IAM-T1 CO2 Monitor

$79

Budget pick. WiFi connected with app. Audible alerts.

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Research Reference

Allen JG, MacNaughton P, Satish U, Santanam S, Vallarino J, Spengler JD. “Associations of Cognitive Function Scores with Carbon Dioxide, Ventilation, and Volatile Organic Compound Exposures in Office Workers: A Controlled Exposure Study of Green and Conventional Office Environments.” Environmental Health Perspectives, 2016;124(6):805-812.

Note: This calculator provides estimates based on published research. Individual results may vary. It is not a substitute for medical advice.