One of the aspects of Aspire products that make them a reliable and user friendly choice is their use of Bottom Vertical Coils. Rather than taking the liquid from the top of the tank, which can lead to blockages and interfere with the taste, Bottom Vertical Coils take the liquid from the bottom of the tank. Coupled with dual heating elements the user can take advantage of a unit that provides twice as much vapour as a standard atomizer, while getting a much cleaner and smoother vaping experience. These coils also last longer than standard versions and with general usage levels can be expected to last for an average of 500 puffs. However, like all things they will wear out and when they do users can experience another of their benefits. As well as being long lasting the coils are easy to remove and replace. To replace all you need to do is detach the battery, remove the old coil unit from the bottom of the atomizer and connect the new one. Add new liquid and allow to soak into the cotton wick before using again. Replacement coils can be purchased direct from Aspire as well as from the company’s selected partners and online stores. All Aspire electronic cigarette kits come with a pack of 5 new coils to get you started.