The ELF Bar 600 disposable vape delivers 2ml e-liquid pre-filled with 20mg nicotine salt. It comes with a non-rechargeable 550mAh battery and produces roughly 600 puffs of vapor per bar, equal to nearly 40 cigarettes. Elf Bar, a leading vape brand, devised this disposable pen to provide a small amount of vapor and a mouth-to-lung style inhale to meet the demands of individuals trying to quit smoking.