Steam accumulators; Steam facial apparatus; Steam generating installations; Steam generators; Steam heating apparatus; Steam sterilizers for laboratory use; Steam sterilizers for medical use; Steam vaporizers for adding humidity to the air; Apparatus for steam generating; Apparatus for the exchange of substances and heat for use in the production of steam, for use in cooking and for use in refrigeration; Combustion chambers; Drain structures for use in spas, steam rooms and baths; Electronic facial steamers; Fabric steamers; Fitted fabric cover for a garment steamer head; Furnaces for melting metals; Garment steamers; Gas scrubbing apparatus; Gas scrubbing installations; Hair steamers for beauty salon use; Ironing tables that generate steam for ironing; Propane torches for heating roofing materials; Propane torches for melting ice; Sanitary installations in the nature of steam rooms; Towel steamers; Walk-in coolers