[Class : 11] Apparatus And Equipment For Cleaiung, Filtration And Purification Of Air And Water, Such As Water Filters And Purifiers, Water Softening Units, Air Cleaners And Purifiers, Water Treatment Plants, Installation For Lighting, Heating, Refrigerating Cooking, Cooling, Ventilating, Drying, Steam Generating, Purification Systems, Water Supply And Sanitary Purposes Incl...