How long an Elf Bar 600 lasts depends on how much you vape daily, weekly or monthly. If you were a light smoker before switching to vapes, you could work through your Elf Bar 600 within a few weeks.However, if you smoked more than 20 cigarettes a day before vaping, you can expect your Elf Bar 600 to last a few days before running out. If you find your E-Liquid flavour no longer tastes delicious but burnt, that’s a surefire sign your Elf Bar 600 is on its last legs. It’s time to revisit Juicemate to get your hands on a new flavour.