USB-powered hand warmers; bed warmers; chemically-activated heating packets for warming feet, not for medical purposes; chemically-activated heating packets for warming hands, other than for medical purposes; electric bladeless fans; electric or non-electric foot warmers; fan heaters; freezers, air-conditioning apparatus, electric ovens, electric refrigerators; holding furnaces; humidifiers; electric humidifiers; air humidifiers; portable air conditioners; portable refrigerators; smart air conditioners; vacuum degassing devices; warming pans; electric fans; electric heating fans; wearable electric fans