Air quality sensors are devices designed to monitor and measure the levels of pollutants in the air. They can detect various harmful substances, such as carbon dioxide, particulate matter, and volatile organic compounds. These sensors help individuals and organizations understand air quality and take necessary actions to improve it. These sensors are commonly used in homes, workplaces, and outdoor environments. By providing real-time data, they enable users to make informed decisions about ventilation, air purification, and overall health. Many air quality sensors can connect to smartphones or computers, allowing for easy access to air quality information.