PM2.5 is becoming very danger for our health now

Now the PM2.5 become more and more danger  because of the pollution.
We always can not see clearly because of the haze and smog in the air.
Use the particle counter can check the air quality and the fine particulate matters.
With the laser particle counter also with the purification rate function.


The article is provide from [Lanjia Water Ionizer], please indicate the source address
reprinted:  http://www.ionaircleaner.com/health_and_environment/2368.html