What kind of harmful things in particle

Fine particlate matter is a kind of noxious gas in the air.
It include OC, EC, nitrate, sulfate, ammonium salt, Na and so on.
Easy go inside hung through breath. with Particle counter can test the weight.
Also can get the quanity from the handheld particle counter too.
Check your air quality around and make it better.


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reprinted: http://homehealthywater.com/health-care-knowledge/1695.html