The 'Zero Style Mint' are smokeless cigarettes that have been introduced into Tokyo by Japan Tobacco, Inc. The cigarettes have tobacco, but no smoke.
No smoke is inhaled or exhaled, saving the smoker the trouble of those bothersome people who do not like secondhand smoke. There are mixed reviews on these smokeless cigarettes. Some airlines let you smoke them--others, not so much. Maybe this is the end to secondhand smoke?
Implications - I'm curious as to how many smokers will be convinced that these cigarettes really do contain tobacco! It's hard to tell, but trust Japan and its cutting-edge science for coming out with a smokeless cigarette.