New CO2 sensor for measuring indoor air quality

With the FYAD 00-CO2Mx carbon dioxide sensor, the sophisticated ALMEMO® system offers an accurate and traceable measurement for assessing indoor air quality, e.g. for appropriate ventilation behavior.

In addition to the CO2 content, the temperature and the air pressure are measured for automatic measured value compensation. The accuracy of the sensor is +/- 50 ppm +/ 3% of the measured value. The concentration of CO2 in the room air is responsible for the quality of the breathing air. A too high CO2 content reduces the performance. In order to reduce the risk of aerosol-borne infections, various studies recommend continuous monitoring of the room air and appropriate ventilation behavior.

However, uncontrolled, frequent ventilation can also significantly worsen indoor air quality. When the temperature outside is below zero, the indoor air becomes significantly drier and respiratory irritation is more likely to occur. It is advisable to check not only the CO2 content but also the humidity and air temperature. By assessing the thermal comfort at the working or learning place, series of measurements of the operative temperature (globe temperature), room temperature, air flow and humidity are recorded. All relevant sensors can be connected to ALMEMO® measuring devices.

Regardless of the indoor air quality, when wearing respirators, attention must be paid to carbon dioxide rebreathing, which is why the recommended duration of wearing certain respirators is regulated by occupational health and safety laws. Fresh air has a CO2 content of about 300 ppm, while exhaled breathing air has between 40,0000 and 50,000 ppm