1. A mouthwash comprising a container, comprising: a first component containing a liquid mouthwash and a second component containing means for filtering the liquid before use, wherein the liquid mouthwash is orally acceptable and contains a preservative, and also for filtering contain material capable of removing a preservative from the mouthwash before use. 2. The product according to claim 1, wherein the preservative is selected from the group consisting of C-C-alkyl esters of para-hydroxybenzoic acid, optionally parabens and benzoic acid, in free form or in the form of a base addition salt. The product of claim 2, wherein the preservative is methyl paraben and / or sodium benzoate. The product of claim 1, wherein the filter includes activated carbon, affinity granules or an affinity matrix. A product according to claim 1, wherein the mouthwash is prepared by pouring the mouthwash through filter media. The product of claim 1, wherein the mouthwash further comprises fluoride ions, calcium ions, zinc ions, buffer reagents and / or other active agents that are not filtered by the filter. A product according to claim 1, wherein the liquid mouthwash contains an orally acceptable means for preventing plaque formation, for example, selected from the group consisting of tin (II), copper, magnesium and strontium salts and mixtures thereof. The product of claim 1, wherein the liquid mouthwash contains a desensitizing agent, for example, selected from the group consisting of potassium chloride, potassium nitrate, strontium salts, and mixtures thereof. The product according to claim 1, in which the liquid composition for rinses1. Продукт для полоскания рта, включающий контейнер, включающий:первый компонент, содержащий жидкий состав для полоскания рта, и второй компонент, содержащий средства для фильтрования жидкого состава перед использованием,где жидкий состав для полоскания рта является перорально приемлемым и содержит консервант, игде средства для фильтрования содержат мат
