Daily use air particle counter tell weather air purifier is necessary

Daily use air particle counter use the best laser sensor made in Germany.
Comparing with industry use particle counter, it is more portable and easy to coperate.
Air particle counter only not give 0.3μm and 2.5μm value, also show pm2.5 and pm10 result.
At the same time real time display temperature and humidity
Using the laser particle counter detect indoor air quality in different time to ensure when will be the time need to turn on air purifier.

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