It is also called as particle counter to know the particle in the air.
Can know the particle quality also the quanity. to know the air good or not.
Also it can help you to sell air purifier, it is the best evidence.
www.homehealthywater.com
www.skin-analyzer.com
www.ionaircleaner.com
The article is provide from [Lanjia Water Ionizer], please indicate the source address
reprinted: http://homehealthywater.com/health-care-knowledge/1670.html
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