For anybody facing resistance to vaping at work, you could try telling your supervisors that the PV is like a pacifier that completely makes cigarette cravings subside. Further explain that by not having to break for a cigarette, your productivity has increased and will continue to remain at that level, all while freeing you, AND THE COMPANY of cigarette related health concerns.
Good advice and if you are lucky you work for someone who is actual sain and listens. If not they will be a jerk just because they can. Some people care more about their ego's (not talking PV eGo's).