Vaping is likely to cause cancer, NZ researchers find Stuff.co.nz Many students believe that vaping harmless, which is far from the truth. Vape pens can contain potentially harmful substances such as chemicals linked to lung disease, cancer causing chemicals, heavy metals such as Vapes And Cancer New research from UNSW Sydney confirms vaping is likely to cause lung and oral cancer. The study shows these devices pose a direct risk, regardless of tobacco history. Australia Adds Vape Graphic Warnings Tobacco Reporter Vaping Causes Lung Cancer? Vaping vs Smoking Dr Tho Lye Mun