Vaping and Juuling Harmless? John Condron, MS What Happens If You Hold Vape Smoke In Your Mouth Vaping isn't harmless especially when Vaping reduces saliva flow, increasing the risk of cavities and bad breath. If you vape, giving your mouth a break matters. The longer you wait between puffs, the more time your saliva While vaping is not risk free, it is less harmful than tobacco Our World in Data Is Vape Smoke Harmful? What's The Difference Between Smoke & Vapor?