In fact only the strongest e-liquids (from 2.5% to 5%) can be classified and even then it’d only be in category 4. So instead of having the same classification as strychnine, e-liquid is as toxic as, wait for it, washing–up liquid. ECITA claim that the EU classification was due to basic mathematical errors, Errors that have already had an impact on EU policy towards e-cigarettes and could influence decision in the US too.