After working for my employer for one year and three months,

Thanks for your patience. I am afraid that you have no legal leg to stand on here in order to challenge the employer’s decision to ban e-cigs. The employer has the right to ban them from the workplace, even if they do not harm anyone directly. It is not a matter of human rights when it comes to smoking or inhaling nicotine or smoking e-cigs – we are not talking about your basic rights like drinking water or eating food at work and there is no law in the UK that would allow you to argue that you should be allowed to continue using these e-cigs in the workplace. There is no discrimination in law as it does not fall within the definition of what discrimination is and as such you need to comply with the employer. You must also bear in mind that you are quite vulnerable in this point of time in terms of potential dismissal as you are not protected against it until you have at least 2 years’ service with the employer. So if you are being difficult about this and refuse to comply, then you can legally be dismissed very easily and won’t be able to challenge it at this stage.

I'm sorry if this is not necessarily the answer you wanted to hear but I hope you understand I have a duty to be honest and explain the law as it actually stands and sometimes this does unfortunately mean delivering bad news. Please let me know if you need me to clarify anything, or if not please leave a positive rating to close the question. Many thanks