A fresh air system is a device that improves indoor air quality by introducing fresh air and exhausting stale indoor air. In a fresh air system, the CO2 sensor is a vital component that detects indoor carbon dioxide concentrations in real-time and adjusts the fresh air volume based on changes in concentration.

The lifespan of the CO2 sensor is one of the important factors affecting the service life of the fresh air system. Generally, the lifespan of a fresh air system CO2 sensor is about 3-5 years, but the actual service life is influenced by the following factors:

● Sensor Type: Different types of CO2 sensors have different lifespans. Currently, there are two main types of commonly used CO2 sensors: infrared sensors and chemical sensors. Infrared sensors typically last about 3-5 years, while chemical sensors usually last about 1-2 years.

● Operating Environment: CO2 sensors are affected by the environment during use. Using them in environments with high temperature, high humidity, or dust will accelerate sensor wear and shorten their lifespan.

● Usage Frequency: The higher the usage frequency of the CO2 sensor, the shorter its lifespan will be. If the fresh air system remains in a high-load state for a long time, it will accelerate sensor depletion.

To extend the lifespan of the fresh air system CO2 sensor, the following measures can be taken:

● Select the Appropriate Sensor Type: When purchasing a fresh air system, a CO2 sensor type with a longer lifespan should be chosen.

● Avoid Use in Harsh Environments: Efforts should be made to avoid using the CO2 sensor in environments with high temperature, high humidity, or dust.

● Reduce Sensor Usage Frequency: The usage frequency of the sensor can be reduced by adjusting the fresh air volume.

The lifespan of the fresh air system CO2 sensor is a key factor affecting the service life of the fresh air system itself. Therefore, when using a fresh air system, care should be taken to protect the CO2 sensor and extend its service life.

The lifespan of a fresh air system CO2 sensor primarily depends on factors such as sensor type, operating environment, and usage frequency. By selecting an appropriate sensor type, avoiding use in harsh environments, and reducing usage frequency, the lifespan of the CO2 sensor can be extended, thereby increasing the overall service life of the fresh air system.