Vape Residue May Harm Unborn Babies' Immune Systems Respiratory Therapy Discover How and Why to Clean Your Vaporizer RQS Blog Vaping in a rental, I'm using a straw to blow the vape out (it's to cold to have the windows down) so nothing sticks to the windshield no cleaning fees for PSA: Vaping indoors doesnt just vanish into thin air it leaves behind a sticky, oily residue that builds up on windows. If your glass looks hazy no matter how much you clean it, this might be why