ZE ZUMMER

USB-powered desktop fans; electric fans for personal use; electric heating fans; humidifiers for household use; steam vaporizers for adding humidity to the air; air purifiers for household purposes; electric radiant heaters for household purposes; USB-powered humidifiers for household use; portable evaporative air coolers; HEPA filters for household use; portable air conditioners; air-conditioning, air cooling and ventilation apparatus and instruments; USB-powered hand warmers