Hon Lik Invented Electronic Cigarette
Electronic Cigarette was invented in 2003
Electronic Cigarette is  an aerosol, commonly called vapor,its exact composition varies the majority of toxic chemicals found in tobacco smoke are absent in e-cigarette aerosol those present are mostly below 1% of the corresponding levels in tobacco smoke the aerosol can contain toxicants and traces of heavy metals at levels permissible in inhalation medicines,and potentially harmful chemicals not found in tobacco smoke at concentrations permissible by workplace safety standards.