Test the air of dynamics equivalent diameter less than or equal to 2.5 micron particles.
PM2.5 is bad to human health and always go through body with breath.
So now everyone need Particle sensor to test air quality then use air purifier.
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/1666.html
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