What’s That White Vapor/Smoke/Fog/Mist On Planes That Blows Into The Cabin? by SharonKurheg August 13, 2019 by SharonKurheg August 13, 2019 I remember the first time I ever saw that white vapor coming down from the vents above me – you know the one I’m talking about, right? – I had… 0 FacebookTwitterPinterestEmail