With the increasing emphasis on health, indoor air quality (IAQ) has gained significant attention. The quality of indoor air directly affects people's physical health and overall quality of life.

To ensure optimal air quality, indoor air quality sensors can be used for monitoring. These sensors can detect various pollutants in the air, including particulate matter, carbon dioxide, and volatile organic compounds (VOCs).

The following are commonly used sensors for indoor air quality monitoring:

PM2.5 Sensor: PM2.5 refers to fine particulate matter with a diameter of 2.5 micrometers or less, which can enter the human body through the respiratory tract and cause health risks. A PM2.5 sensor can accurately measure the concentration of these particles.

CO2 Sensor: CO2 is a colorless and odorless gas and one of the primary sources of indoor air pollution. Excessive concentrations can lead to headaches, drowsiness, and lack of concentration. CO2 sensors provide real-time monitoring of indoor levels.

TVOC Sensor: TVOC stands for Total Volatile Organic Compounds, including formaldehyde, benzene, toluene, and ethylbenzene. High levels can cause nausea and fatigue. A TVOC sensor accurately measures these gaseous pollutants.

In addition to the above, other sensors used for IAQ include:

Formaldehyde (CH2O) Sensor: Specifically monitors formaldehyde levels, a major indoor pollutant from furniture and building materials.

Carbon Monoxide (CO) Sensor: Detects this dangerous, odorless gas to prevent poisoning.

Humidity Sensor: High humidity can lead to mold growth, while low humidity causes discomfort.

Temperature Sensor: Essential for maintaining overall environmental comfort.

When choosing sensors, it is important to select based on your specific needs. For a comprehensive overview, a combination of PM2.5, CO2, and TVOC sensors is recommended to ensure a fresh and healthy indoor environment.