Activated carbons for general industrial use; Carbon; Chemical preparations for use in industry; Chemicals for absorbing oxygen; Chemicals for use in purification of water; Chemicals in the nature of sorbents; Water-purifying chemicals; Water-softening preparations; Chemical preparations in the nature of filtering materials for water filter and water softener; Diatomite; Mineral substances in the nature of filtering materials for water filter and water softener

Air filtering installations; Air purifying apparatus and machines; Filters for drinking water; Gas scrubbing apparatus; Water filtering apparatus; Water purification installations; Water purifying apparatus and machines; Water softening apparatus and installations; Water desalination plants