Wiktionary
pure air
n. (context obsolete chemistry English) oxygen
Wikipedia
Pure Air
Pure Air is the second release of the band Agua de Annique formed by the former The Gathering vocalist Anneke van Giersbergen. It was released in 2009. It contains tracks from their first album Air, and also songs featuring Anneke with other artists (Within Temptation, Anathema, Arjen A. Lucassen...).
Usage examples of "pure air".
She wanted to enjoy the woods, the sweet May breeze, the song of birds, the green meadows, and to inhale in full draughts the pure air.
He waited in order to allow pure air to displace the foul atmosphere, and then went on.
Why, no, Maskelyne, after the Cape I find it quite calming here, in a Tropical way, pure Air, Coffee beyond compare, from Bush to Oast unmediated!