When someone vapes around others they expose them to 'second hand aerosol'. But what happens to that aerosol then? Does it disappear or is it like cigarette smoke and stays around, sticking to How Long Does THC Vape Stay? Green Herbal Care How Long Does Vape Smoke Stay in the Air After Vaping Indoors? Does Smoke From A Vape Stay In The Air How long does vape smoke stay in the air? 5 Vaping Facts You Need to Know Johns Hopkins Medicine