vape pen are mainly used to quit smoking and replace cigarettes. It has the same appearance as a cigarette, a similar taste to a cigarette, and even a lot more flavor than a normal cigarette. It can also suck out smoke, taste and feel like a cigarette.

Electronic cigarette pens do not contain tar, suspended particulates and other harmful components in cigarettes, and manufacturers also believe that electronic cigarettes do not have diffuse or lingering second-hand smoke.

But some studies suggest that e-cigarette pens still contain second-hand smoke. Due to the lack of systematic clinical experimental data support for electronic cigarette pens, some countries have determined that electronic cigarettes are illegal, and some countries have determined that electronic cigarettes must meet drug standards before they can be sold as smoking cessation drugs. It should be noted that electronic cigarettes do not have the effect of clearing lung toxins, and the claims that electronic cigarettes can clear lung toxins are false and illegal propaganda.