Comments by "Yerris" (@yerri5567) on "Chinese incense workers making a third of global supply scramble ahead of Lunar New Year" video.

@forgaoqiang Seems like you dont know what fine particles are and what they do to your lungs. Research what PM2.5 is. Its extremely damaging to your lungs, especially when exposed long term.
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@forgaoqiang Protect it with a mask? Isnt that obvious?
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@OshiyoNatakagi Mask without a filter is useless.
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@forgaoqiang "OK, as Chinese, I do really know what PM2.5 is, it's better to wear a mask, but it doesn't like miner, those dust seems hurt less" Ok. I dont think you 100% know what PM2.5 really is if you think those dust is hurtless. No dust in this world is hurtless when exposed long term. In fact, those dust there seems much larger than PM2.5. Possibly even PM10 - thats much bigger and more harmful.
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@forgaoqiang "PM 2.5 is the most harmful type of dust, because they are just small enough to get in and not large enough to get out, so they will still in human body, that's the most harmful things, PM10 is much less harmful, is that correct?" Its not the size that is harmful. It is the volume of particle intake into your lungs. If there is high concentration of PM2.5/5.0/10 in the air, it is bound to be harmful. So being exposed LONG TERM to particles of ANY size is extremely dangerous. Since its so visibly dusty in this workplace, these workers are bound to get some lung problems somewhere down their life.
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