Given the amount of media coverage regarding a potential disposable vape ban, there's an increasing chance that there's going to be legislative changes brought into effect - what those changes look like at the moment, we don't know. All we know at the moment is that TPD approved disposables with no more than 2ml of pre-filled liquid are currently still eligible for sale in the UK. Larger devices, such as the 3500 puff devices that often make their way into consumers hands aren't eligible to be sold in the UK, likely won't have gone through the testing required for TPD and could be unsafe to use.