Smoke rises from chimneys of houses amid smog on a polluted day in Ulaanbaatar, the capital of Mongolia. Fed up with the smog in Mongolia's capital, residents have resorted to sipping "lung" tea and "oxygen cocktails" in a bid to protect themselves from pollution, despite health officials saying there is no evidence they work. Byambasuren Byamba-Ochir / AFP 
Smoke rises from chimneys of houses amid smog on a polluted day in Ulaanbaatar, the capital of Mongolia. Fed up with the smog in Mongolia's capital, residents have resorted to sipping "lung" tea and "Show more

Mongolians sip 'oxygen cocktails' to cope with smog