’’all out’’ they (manufacturers) mean that all (mosquitos)out but I discovered that it was all (mosquitos) IN, so better call it all-in. as when you will use this so called all out you will find that all the mosquitos of your room are sitting on this machine and enjoying the fragrance of this idiot machine. might be in winters the mosquitos love to sit on this machine to keep themselves worm or they find it the best meeting place. one good thing is there that you will not kill any body, hence probably you will go to heaven, as it is said that killers go to hell. do not kill anybody (it is a crime) do not go hell and better use all-in, sorry I mean the so called All-Out (what’s Out??)