Blueberry Puff Bar is a juicy and complex flavor. Immediately identifiable blueberry tones greet you on inhale and a hint of sour acidity cuts through the sweetness. The result is a well-balanced vape flavor. Puff Bar Blueberry is a nic salt formula. It is smooth and delivers a nicotine level of 5 percent. Each Puff Bar disposable is loaded with 1.3ml of ejuice and is good for at least 300 puffs.