Apparatus for the exchange of substances and heat for use in the production of steam, for use in cooking and for use in refrigeration; Butane torches for cooking; Electric coffee brewers; Fog generators; Fog making machines; Household air cleaners; Ice cube making machines; LED lighting fixtures for indoor and outdoor lighting applications; Multi-purpose, electric countertop food preparation apparatus for cooking, baking, broiling, roasting, toasting, searing, browning, barbecuing and grilling food; Refrigerator shelving, drawers, bins and trays; Smoke generating apparatus for cooking; Smoke generating apparatus for infusing cocktails with smoke; Smoke generating apparatus for infusing food and beverages with smoke; Smoke generators for cooking; Sous-vide machines for commercial and household use