Which of the following is a misconception about the use of e-cigarettes?

The notion that e-cigarettes are harmless compared to tobacco is a misconception because, despite being marketed as a safer alternative, e-cigarettes still pose various health risks. While they may contain fewer harmful substances than traditional cigarettes, they are not without their dangers. E-cigarettes can include harmful chemicals and are linked to negative health effects, including lung damage and addiction due to nicotine content. It's important to recognize that "being less harmful" does not equate to being harmless.

The other options contain truths that contribute to misconceptions about e-cigarettes. For instance, e-cigarettes indeed contain nicotine, which is the same addictive substance found in traditional tobacco products. Many people mistakenly believe that e-cigarettes are completely safe for quitting smoking, but they can lead to new nicotine addiction. Finally, while e-cigarettes produce vapor, this vapor can also contain harmful substances, thus complicating the perception of safety.