With Particle sensor you can know PM2.5 and PM10.
Not only the particle quantity(PCS/L) also the weight (ug/m³).
You can know what kind of air you are lived in.
www.homehealthywater.com
www.skin-analyzer.com
www.ionaircleaner.com
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reprinted: http://homehealthywater.com/health-care-knowledge/1681.html
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