Besides can air freshner does any1 have suggestions for the glade, Febreeze, Etc. ??

Does anyone know if those Battery operated Glade scent sensors or whatever they are that go off every 15-20 minutes or so, actually work or is it just a waste of $$ ?? I need 1 or 2 for my hallway.I live in a double house & my neighbors smoke in the hallway which the landlord don't seem to care about if she's collecting her rent but I'm not a smoker & disgusting walking right into it or it coming in my house. I've tried to also talk to them several times about it but it works for a few wks. then starts again. They have little kids so would rather sit in the hallway then stay in their house with it. I can see with the kids but you have neighbors that don't smoke to that you should have some respect for as well. Thanks & no negative needed.