KNOW the Virus Risk in Your Air
Understand and manage the risk of virus transmission indoors by identifying the key influencing factors.
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Virus Transmission Risk Index
Virus Transmission Risk Index (VTRI) is a tool that calculates the risk of virus transmission in a specific environment, based on factors like room size, crowd density, and duration of stay. Additionally, VTRI dynamically monitors key air quality indicators in real-time, including CO₂ levels, particulate matter (PM), TVOC (Total Volatile Organic Compounds), and humidity. By combining these factors, VTRI provides an accurate estimate of the potential viral transmission risk in your home or workspace, helping you understand and manage the safety of your environment.

🔴 Red
High risk of virus transmission. Air quality is poor with inadequate ventilation and elevated pollutant levels.
🟠 Orange
- Increased risk of virus transmission. Ventilation may be insufficient, or pollutant levels are rising.
🟢 Green
- Low risk of virus transmission. Air quality is excellent with proper ventilation and low pollutant levels.

Virus Transmission Risk Calculator
Note: This tool provides approximate risk values. For maximum accuracy (CERN-certified), we recommend using an ARVE SENSE Pro air quality sensor.