Particle counter is very important in our life

Particle counter is a detector to detect atmospheric particle size less than 2.5 micron.
Although the fine particles are only a few of the components of the earth's atmosphere,
it has important influence on air quality and visibility.
Small particle size can go inside human body sometime can cause disease.
Use laser particle counter can check the PM2.5 and PM10. also the 0.3 micron and 2.5 micron.