What’s the advantage of handheld particle counters?

Since we published the pre-sale handheld particle counters,
many people are interested but do not clear what exactly is.
Handheld particle counter for fine particulate matter detecting and give data,
it can store 6 times detecting result so that doing comparison.
Then we can know what’s the change of air quality.
So this device mostly use for air purifier selling as auxiliary equipment,
major market for amway people and other direct selling people.
Friendly link:http://www.skin-analyzer.com/
http://www.homehealthywater.com/
http://www.ionaircleaner.com/

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