Air exchangers for cleaning and purifying air; Air purifying apparatus and machines; Combination ozone sanitizer and electric deodorizing units; Dryers used for the removal of solid, liquid and vapor contaminants from compressed air and gases; Electric air sanitizing unit; Electric coffee brewers; Electric hot plates; Electronic facial steamers; Hand-held electric hair dryers; Hydrogen generators; Hydroponics grow box in the nature of a closed environment equipped with lights, exhaust system, hydroponics growing container and odor control system; Indoor radiant heating systems; LED (light emitting diode) lighting fixtures; Multi-purpose, electric countertop food preparation apparatus for cooking, baking, broiling, roasting, toasting, searing, browning, barbecuing and grilling food; Portable electric household appliance used to kill bacteria and viruses on food; Portable electric warm air dryer; Power-operated vaporizers for household purposes; Separators for the cleaning and purification of gases; Thermoelectric cooler/heater for food and beverages; USB-powered hand warmers