An Air Quality Monitor is a device that measures the levels of pollutants in the air, such as carbon dioxide, particulate matter, and volatile organic compounds. These monitors help individuals and communities understand the quality of the air they breathe, providing real-time data that can inform health decisions and environmental policies. Many air quality monitors are portable and user-friendly, making them accessible for home use or outdoor activities. They often connect to smartphones or computers, allowing users to track air quality trends over time. This information is crucial for protecting public health and promoting cleaner environments.