空氣品質 
空氣品質監測儀
空气净化器
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IQAir
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AirVisual low-cost air quality monitors are operated by passionate citizen scientists, schools, government agencies, researchers, non-profit organizations and socially responsible businesses around the world. Often self-financed or supported by private and public grants, these non-regulatory air quality sensors provide an important supplement to government produced air quality data generated for regulatory and compliance purposes. In many parts of the world, low-cost sensors provide the only publicly available, ground-level air quality data enabling engaged citizens raise awareness for air quality.
站點
美國AQI, Metric