OverView: An air quality sensor in smart buildings is an IoT-enabled device that continuously monitors and measures indoor environmental parameters—such as CO2, VOCs, particulate matter (PM2.5/PM10), temperature, and humidity. These sensors provide real-time data to building management systems to automate HVAC adjustments, enhancing occupant health, comfort, and energy efficiency. 

Key Aspects of Air Quality Sensors in Smart Buildings: 

Applications: Commonly used in smart offices, schools, and commercial spaces to improve productivity and well-being. 

Monitored Pollutants & Parameters: These sensors detect dangerous or uncomfortable levels of Carbon Dioxide (CO2CO sub 2CO2), Volatile Organic Compounds (VOCs), particulate matter (dust, smoke), Carbon Monoxide (CO), humidity, and temperature.

Smart Building Integration: Data is transmitted wirelessly (e.g., via Wi-Fi, LoRaWAN) to central systems, enabling Demand-Controlled Ventilation (DCV) which adjusts air circulation based on actual occupancy rather than fixed schedules.

Benefits:

Health & Safety: Prevents Sick Building Syndrome, reduces mold growth, and ensures air safety.

Energy Efficiency: Optimizes HVAC performance, reducing energy waste and lowering costs.

Real-time Monitoring: Offers continuous tracking for immediate detection of, and response to, poor air quality.