Air exchangers for cleaning and purifying air; Cleansing/sanitizing system comprising a containment enclosure specially adapted for containing an atomized cleansing/sanitizing spray mechanism for use in the cleansing/sanitizing of objects including articles of manufacture, natural products, foods and pharmaceuticals; Electric fans; Electric fans for household purposes; Electric fans for household use; Electric lights for Christmas trees; LED lamps; LED landscape lights; LED lights for strings, flowers, branches and other ornamental decorations; LED ribbon lights; LED rope lights; Portable electric fans; Separators for the cleaning and purification of air; Separators for the cleaning and purification of gases; Separators for the cleaning and purification of liquids; USB-powered desktop fans; Wearable electric fans