Air Quality Measuring Apparatus

1. Air quality measuring apparatus

1 . 1 : Perspective

1 . 2 : Front

1 . 3 : Back

1 . 4 : Top

1 . 5 : Bottom

1 . 6 : Left

1 . 7 : Right

An air quality measuring apparatus installed indoor or outdoor is used to measure the concentration of air pollutants and particulate matters; the lower part of the apparatus made of a transparent or translucent material changes its color depending on the status of air quality.