VitaliZEN Indoor Air Quality Monitor air quality monitor has built-in high sensitivity laser scattering sensors that accurately measure Carbon Dioxide (CO2), Formaldehyde (HCHO), Volatile Organic Compound (TVOC), Particulate Matter (PM2.5/PM10). The Air Quality Monitor is a revolutionary device that can accurately monitor eight different kinds of indoor air pollutants, gaseous chemicals, and even temperature and humidity in your home so that you can be assured that your family can breathe clean air. The air quality monitor is quietly and effectively detecting those toxic chemicals and providing you the information equivalent to replacing many lab instruments, without the high cost or training.