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 equipment for the recovery, purification and return of gases in industrial applications; Heating systems composed primarily of tubes, pipes and manifolds through which warm or high temperature water circulates; Ice skating rink chiller systems; Irrigation spray nozzles; Irrigation sprinklers; Lawn sprinkler systems comprising pumps, valves and filters; Misting systems for outdoor cooling; Personal cooling and misting mats for use alone or with outdoor chairs and lounges; Plumbing fittings, namely, fresh water fills for recreational vehicles; Plumbing fittings, namely, spouts; Refrigerated self-service cases, refrigerated self-service deli cases and custom fabricated refrigeration systems used by supermarkets and convenience stores to store and display food and beverage products and structural parts and fittings therefor; Sprinkler heads for irrigation sprinklers; Valves being parts of lawn sprinkler systems; Watering machines for agricultural purposes