Air-conditioning installations; Air purifying apparatus and machines; Filters for drinking water; Ionization apparatus for the treatment of air; Purification installations for sewage; Wall water fountains; Water filtering apparatus; Water purifying apparatus; Water purifying apparatus and machines; Water sterilizers

Air conditioning installations; Air purifying apparatus; Apparatus for disinfecting water; Cooking ovens; Desiccating units for producing dried fruits; Hot air blowers; Hot water heaters; Refrigerating machines and installations; Sanitary installations in the nature of steam rooms; Ventilating exhaust fans