11 Heating, steam producing and cooking devices, in particular ovens, cooking, baking, frying, grilling, toasting, thawing and food and plate warning apparatus, immersion heaters, cooking pots, electric, microwave appliances, electric tea and coffee making apparatus, cooling devices, in particular refrigerators, freezers, combination apparatus of cooling and freezing, deep freezing apparatus, ice-makers; ice-cream makers; driers, in particular laundry driers, tumble driers for laundry use; hand driers; hair driers; ventilation devices, in particular ventilators, grease filter devices and extractor devices including extractor hoods; air conditioning devices and devices to improve air quality, air humidifiers, water piping devices as well as sanitary equipment, in particular also fittings for steam, air and water piping equipment, warm water devices, storage water heaters and continuous flow water heaters; kitchen sinks; heat pumps