The generated source of PM2.5

PM2.5 which can called with fine particulate matter, fine particle.
Refers to the environment in the air which diameter of less than or equal to 2.5 micron particles.
It can be a long time suspended in the air, easy breath into human lung bad to health.
PM2.5 always comes from the bad environment and the air pollution.
With PM2.5 detector which can test the index in the air and then solve the quesiton.


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