A woman exhales vapour from an e-cigarette outside the offices of British e-cigarette manufacturer Totally Wicked in Blackburn

A woman exhales vapour from an e-cigarette outside the offices of British e-cigarette manufacturer Totally Wicked in Blackburn

A woman exhales vapour from an e-cigarette outside the offices of British e-cigarette manufacturer Totally Wicked in Blackburn, northern England March 19, 2015. Picture taken March 19, 2015. To match Special Report ECIGARETTES-REGULATIONS/ REUTERS/Phil Noble TPX IMAGES OF THE DAY – RTR4UGFY