It's probably not the smell that would get you, but nosy neighbors reporting vape activity. If ventilation is an issue in your unit, the bathroom surely has a fan? (Also, hard for neighbors to spot you from there). I personally hate air fresheners, but having one around might be a handy thing, even if you only plug it in if the landlord is doing an "inspection."
BTW, since it was mentioned, did you bring it up? Cuz if so, I'd be prepared for a "surprise inspection" even though most places require notice to the tenant of landlord arriving. Maybe let a few nosy neighbors see you vaping outside a bit, if you decide to go for inside.... Etc....
You could lose your security deposit if the landlord does suspect anything and whatnot. If you have carpet, it might need "shampooing" and etc., etc., you could also be out a place to live. All things to consider.
Anna.