The legislation, passed in 2015, came into effect Jan
Royal purple interior velvet ribbon
What they are is *relatively* harmless compared to lit tobacco, which is not only a perfectly valid piece of objective assessment based on the evidence we have, and the materials science we know extremely well (although in a slightly backhanded way e-cigarette use long term might be like losing the tips of all your fingers, whereas smoking is like being run over a series of articulated lorries, that are on fire, such is the massive harm smoking does) but that relative harm *is* the actual important point
This limit applies to all vape products, including nicotine salts and freebase nicotine e-liquids
Vaping is nowhere near as harmful as smoking cigarettes, which contain tobacco, tar and a range of other toxic cancer-causing chemicals, and is one of the largest preventable causes of illness and death in the UK