Phrases with «thick air»

One thicker air protect cushion is placed higher for bigger babies and one smaller cushion just low enough to protect newborns. (followmum.com)
Or if not thin air, how about thick air? (discovermagazine.com)
Scientists have already linked aerosol emissions to increases in lightning over areas of the Amazon prone to forest fires (pdf) as well as regions of China with thick air pollution. (scientificamerican.com)
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