Water purification installations;Water filtering apparatus;Filters for drinking water;Water purifying apparatus and machines;Disinfectant apparatus;Deodorising apparatus, not for personal use;Water dispensers;Water purifiers for household purposes;Water purifiers;Purification installations for sewage;Water purifiers for industrial use;Water purifiers for industry;Sterilizers;Disinfectant dispensers for toilets;Ionization apparatus for the treatment of air or water.;