I use them on trips. I don’t smoke regular cigarettes in the car and I don’t smoke in the house.
I can’t vape very long at all though.
Something in it irritates my throat far worse than regular cigarettes.
Probably propylene glycol which is used at 50% in most juices. Try high VG (vegetable glycerin) juices and check that the nicotine is 12 mg/ml (.12 %) or less.