Laser particle counter let you keep away from disease

Fine particulate matters is very small matters can go inside human body with breath.
We can check by particle counter to see the result of the PM2.5 and PM10.
October 17, 2013, the World Health Organization under the international agency for research on cancer released a report,
first identified air pollution to human cancer, which is regarded as the general and main environmental carcinogen. 
However, although air pollution as a whole carcinogenic factor is proposed, it is likely to harm the human body by the results of several major pollutants at the same time.
So we need the laser particle counter help use to demo the air quality around us. keep alway from disease.