Survival and development of the air pollution hazard

Particle counter is a machine to check fine particulate matters in the air around us.
Air pollution is mainly through three ways the harm of biological survival and development:
one is the biological poisoning or died of exhaustion, and the second is the normal development of the slow biological,
The three is to reduce the resistance of biological pest.
With the laser particle counter we can check PM2.5 and PM10. also the 0.3μm and 10μm.