Air purifiers; Book sterilization apparatus; Electric hot air hand dryers; Germicidal lamps for purifying air; Hair dryers for household purposes; Hair drying machines for beauty salon use; Portable electric household appliance used to kill bacteria and viruses on food; Sterilization units for buildings in the nature of apparatus that floods a room or space with anti-bacterial gas that eliminates all bacteria in the room or space; Sterilizers; Sterilizers for toothbrushes