Humidifiers; Agricultural irrigation units; 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; Cooling fan systems for wall ovens; Cooling installations for water; Fogging machines for sterilizing; Gas recycling system comprised primarily of pressure swing adsorption equipmen...