This can be a disposable machine(singl-use), you aren't purported to open them. Having said that, these devices could be refilled but It's not necessarily proposed since the lifetime span on the coils is designed to be that from the juice inside of the system. Digiflavor was set up in 2016 https://titusxqfvj.link4blogs.com/50095376/the-smart-trick-of-000-puffs-disposable-vape-5ct-display-that-nobody-is-discussing