1. Electronic cigarettes do not contain tar, carbon monoxide and other harmful substances that are in almost all cigarettes. They only contain nicotine, and nicotine itself is not very harmful. It is just an addictive thing. Of course, you can't inhale too much. If you smoked 8 packs of cigarettes a day, you would be poisoned by nicotine. But the chances are you die with the help of other ingredients before being poisoned by nicotine.
2. Electronic cigarettes hardly produce second-hand smoke. They only produce a relatively small amount of mist that does not make people feel unpleasant. Compared with second-hand smoke from real cigarettes, the impact on people around them is almost negligible.
3. The level of nicotine can be easily controlled in electronic cigarettes. You can gradually reduce the amount of nicotine in your device, and with help of willpower, you may eventually successfully quit smoking .