The hazards of propylene glycol e-cigarettes are as follows:
1. Nausea. Ingesting a large amount of propylene glycol in electronic cigarettes may cause stomach pain and nausea.
2. Eye discomfort. If the eyes are exposed to the smoke of e-cigarettes, the eyes may be slightly irritated and may even damage the cornea.
3. Respiratory tract irritation. Propylene glycol in electronic cigarettes can cause strong irritation to the human respiratory tract, and long-term smoking may cause the human body to become dependent on electronic cigarettes.
4. The lungs turn black. If you smoke e-cigarettes for a long time, the human lungs will absorb a large amount of propylene glycol in the e-cigarettes, which may cause the lungs to blacken for a long time. In severe cases, black spots may appear on the lungs.