Portable Purifiers - There are also motorcaravanners who like to be as self sufficient as possible and prepare their own drinking water. These hardy adventurers know that one of the best known purification specialists is General Ecology Europe and the TRAV-L-PURE personal purifier has been used on expeditions in many parts of the world. Its filtration system not only removes unpleasant tastes: it traps chemicals such as pesticides, solvents, disease bacteria, pathogenic cysts with disease toxins, parasites, and water bourn particles. And it doesn't do this using chemicals such as chorine.