Monitoring CO2 to Reduce the Risk of COVID Spreading
- CO2 concentrations can be a useful indicator regarding air cleanliness.
- Outdoor air contains around 400 parts per million (ppm) of the gas.
- People’s exhaled breath contains around 40,000ppm. Exhaling into a room therefore gradually raises its CO2 concentration unless the ventilation is good enough to remove the excess.
- According to experts on air quality, anything below 500ppm in a room means the ventilation is good.
- At 800ppm, 1% of the air someone is breathing has already been exhaled recently by someone else.
- At 4,400ppm, this rises to 10%, and would be classed as dangerous.
- These sorts of levels are seen only in crowded spaces with poor ventilation.
How the Sensors Work
- Battery powered sensors are easily fitted in the rooms you want to monitor.
- They monitor CO2, temperature, humidity and VOC.
- Readings periodically sent wirelessly to our secure cloud (using LoRA or Sigfox).
- If the levels get too high the cloud sends email alarms.
- Historical data can be viewed via web portal, integrated to other software via and API and export to spreadsheets.