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CO₂ automatic indoor ventilation system

CO2 sensor, air quality monitoring

It is important for humans and other living organisms to have proper ventilation in order to maintain a clean indoor air quality. The fact that indoor air is not cleaner than outside air has been proven by many kinds of research through testing and measuring. In fact, ventilation, a method of bringing the outdoor air into the indoor environment, is the most affordable way of cleaning indoor air.

However, during ventilation, the indoor cooling or heating energy is lost. So it is very important to minimize energy loss while ventilating appropriately in order to maintain a comfortable environment.

There are various hazardous substances that are used as reference substances for ventilation such as VOCs, dust, formaldehyde, etc because CO2 is emitted in a large volume by humans and animals and when fuels are burned. Through various studies and verification, CO2 is regarded as reference gas for detection of harzardous gas and to check if air became clearly or not through ventilation.

Therefore, for closed indoor environments such as classrooms, kindergartens, houses, buildings, multi-use facilities, vehicles and worksites, CO2 sensors are increasingly being adopted in the automatic ventilation system that starts ventilation when the CO2 concentration reaches a certain level (legal standard: 1000ppm) and stops when the concentration goes below a certain level (generally 800ppm). These sensors guarantee high accuracy, stability and long service life. ELT SENSOR supplies the best sensor solutions that can work with the automatic ventilation system in order to maintain a comfortable environment while saving energy by 30% or more.

Applicable products