It is known to us,smoking bans have been popping up across most places around the world for years now. There is evidence on both sides regarding the harmful affects of second hand smoke. Some studies show that second hand smoke is detrimental to those around the smoker and some studies have shown that with proper air ventilation, second hand smoke is not an issue.
Under this situation, or what we called mini electronic cigarette or e cigarette appears,the way it works is simple. Each electronic cigarette or "e-cig" has a battery, a atomizer (cartomizer), and a cartridge filled with liquid nicotine. Upon inhalation, a device is switched on which sends a signal to a heating element inside of the unit, called an "Atomizer". The e-cig atomizer heats up quickly and vaporizes the liquid nicotine into a fine water-based mist that replicates the look and feel of smoke. This smokeless vapor tastes and smells great . It gives you the full effect of smoking real tobacco without harsh tobacco smoke and without second hand irritation.
So we just can say that mini electronic cigarette is just new fashion,who knows it will be a trend or not,if you are a smoker and want to try something new,just enjoy it.