The episodes involved vaping on an e-cigarette with nicotine, an e-cigarette without nicotine, and smoking a tobacco cigarette. The participants' oxygen flow was measured in terms of the rate at ...

The popularity of vaping is rising, with “more than 2 million U.S. middle and high school students reported using e-cigarettes in 2021, with more than 8 in 10 of those youth using flavored e ...