Air quality monitoring for homes is the process of measuring and tracking indoor environmental conditions and common air pollutants. Depending on the device, a home air quality monitor may measure particulate matter such as PM1.0, PM2.5, and PM10, as well as carbon dioxide (CO2), total volatile organic compounds (TVOC), formaldehyde (HCHO), temperature, and humidity. For homeowners, the purpose of an air quality monitor is not simply to display numbers. It provides measurable information that can help identify changes in indoor air conditions and determine when ventilation, source control, moisture management, or air cleaning may be appropriate. In this article, we'll explain the importance of indoor air quality monitoring in detail and help you choose the right air quality monitor for your specific needs.