N One disposable vape devices are available in a wide range of flavours, including fruit, menthol and tobacco. Each device lasts for about 300 puffs or the equivalent of 20 cigarettes. There are no buttons or menus, each device is inhale activated. The e-liquid inside uses salt nicotine in strengths of 20mg for a smoother throat hit. These disposables are perfect for people new to vaping or as a back-up device for experienced vapers.