A fluid spray apparatus includes a pump providing fluid at an elevated pressure and a delivery system coupled to the pump to spray the fluid in a predetermined configuration. More particularly, this invention relates to a dietary supplement consisting of the botanical plant Salvia divinorum as the source substance, including Salvinorin Alpha as its primary active constituent, which is precisely extracted from S. The electronic cigarette and the electronic cigarette casing are of health, hygiene, environmental protection and good taste and good feel.