Even if you dont inhale while vape smoking, your mouth, throat, and lips are exposed to harmful chemicals, as is your oesophagus when you swallow saliva that contains the chemicals. , There is a Kids Health Info : Vaping and e cigarettes What Happens If You Accidentally Inhale Vape Juice? Risks & Fixes Do You Swallow Smoke When Smoking Weed? Bellingham's Favorite Recreational Dispensary If you vape, you inhale a lot of harmful substances. These can damage your heart and lungs.