Are you trying to use it in a public library or something? lol, it also depends on how one defines discreet, which varies from one situation to the next. Sure my Alfa is silent when using it, making it the most discreet vape I own...until I have to spread out 10 pieces of gear just to load it properly, or when I fire it up on a fresh load and it can fill a stadium with the smell of weed, then it becomes not so discreet. I feel that the Fury2 with the native MP is the most discreet vape I own overall. I dont have to look like a junkie like I do with my Vapcap, and I dont have to deal with stink of epic proportions if I fire it up in a crowd of people.