Apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes, namely, electric light bulbs, portable electric heaters, steam generators, refrigerators, clothes dryers, ventilating fans for commercial use, air filters for domestic use, air conditioning units, bathtubs and toilets, water filtering units for domestic and commercial use, cooking apparatus, namely, electric kettles, barbecue grills, electric coffee percolators, ...