[Class : 11] Apparatus For Lighting, Heating, Steam Generating, Cooking, Refrigerating, Drying, Ventilating, Water Supply And Sanitary Purposes; Sanitary Installations And Apparatus; Portable Sanitary Installations; Waste Incinerators; Waste Disposal Incinerators; Wastewater Purification Installations; Wastewater Treatment Apparatus; Wastewater Purification Units; Wastewater Treatment Installations; Waste Water Treatment Tanks; Waste Incinerators For Household Purposes; Waste Incinerators For Industrial Purposes; Waste Water Treatment Tanks For Industrial Purposes; Waste Water Treatment Tanks For Household Purposes; Bioreactors For Use In The Treatment Of Waste; Bioreactors For Use In The Treatment Of Waste Water; Sewage Purification Apparatus; Sewage Purification Installations; Sewage Treatment Plants; Sewage Disposal Plants; Air Purification Apparatus; Water Purification Machines; Water Purification Tanks; Water Purification Units; Water Purification Installations; Water Purification Apparatus; Gas Purification Apparatus; Gas Purification Installations; Gas Scrubbing And Purification Apparatus; Rainwater Purification Installations; Water Purification And Filtration Apparatus; Environmental Control Apparatus And Installations For The Purposes Of Lighting, Cooking, Cooling And Sanitizing.