Delhi has opened its first oxygen bar offering 15-minute hits of clean air to people living in the world's most polluted city. Oxy Pure sells 80 to 90 per cent pure oxygen for 300 rupees (about £3) per session, in a range of flavours including lemongrass, lavender, cherry and eucalyptus. A one-of-a-kind store in Delhi's Saket, Oxy Pure, is an 'oxygen bar' which offers flavoured oxygenated air to its customers ...