> CTRL+F "smoke"

> CTRL+F "smoking"

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The dominant source of air pollution for almost all of human history has been smoke of one sort or another (see: historical dramas that show indoor light/heating with candles and fireplaces, https://samharris.org/the-fireplace-delusion/), to the extent that I personally doubt banning secondhand smoke indoors would have made much difference to non-smokers' health before open wood fires and coal fires were phased out.

I suppose it's a notable achievement of our society that both industrial pollution and domestic smoke has been reduced so much that VOCs from other sources indoors are our greatest worry.