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2in1 Cigarette Detector with Remote Control, No Smoking and PM2. 5 Alarm with Voice Reminder, Tobacco Control Guard Environmental Monitor for Office Public Spaces Smart Air Quality Surveillance System : Industrial & Scientific Wildfire smoke contains tiny PM2.5 particles that can pose serious health risks. Here's how you can compare prolonged smoke exposure to smoking cigarettes and what it means. FULL STORY What is PM 2.5 and why is it so harmful? Smoking cannabis can put more PM2.5 in air than a cigarette #airqualitymatters #secondhandsmoke Particulate Matter CA PHE What is particulate matter?
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