Yes, even on days where outside air was bad (AQI ~ 180), the air was even worse in the cafes that allow smoking. So, although indoor air is better than outdoor air in China, you lose any advantage once people start smoking–even if you’re in the non-smoking section.For more data and explanation, click here to read the full article: https://smartairfilters.com/en/blog/china-english-smoking-is-worse-than-outdoor-air-pollution/
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