6 in 1 PM2.5 PM10 HCHO TVOC CO CO2 Air Quality Detector CO CO2 Formaldehyde Moni
TVOC detecting ranges: 0-9.999mg/m⊃3;. HCHO detecting ranges: 0-9.999mg/m⊃3;. PM10 detecting ranges: 0-999ug/m⊃3;. PM2.5 detecting ranges: 0-999ug/m⊃3;. If you're looking for a new air quality monitor, give it a try, it won't let you down.