Losjoonipump on seade, mis väljastab vaakumi abil kindla koguse toodet. Kui pumba täiturmehhanismi vajutatakse, it produces approximately 2cc of product. These devices, unlike non-lotion pumps, do not become clogged with product. Their outer shell also allows air to flow, creating pressure inside the bottle without drying it out. They are suitable for use in lotions, šampoonid, and conditioners.
