Enjoy the healthy breath with air particle counter

Air particle counter is the best usefull machine now to check air quality.
The air pollution is very bad all over the world.  effect our breath.
PM2.5 can go inside human body with breath, and go inside the lung and cause disease.
Particle counter can check the PM2.5 and also the PM10 in the air.
Let us know how to change the air quality and live in a healthy area.