Disposable e cigarettes, popular among teens and young adults, are not as harmless as they may seem. Recent studies have revealed that these devices release toxic metals like lead, nickel, and antimony into Environmental Factor February 2022: E cigarettes expose users to toxic metals such as arsenic, lead What's really inside vapes? We pulled them apart to find out Most young users put disposable e cigarettes in trash, creating huge streams of toxic and hazardous waste, as companies fail to take responsibility