Dehumidifiers; Humidifiers; Air cleaning units; Air cleaning units containing an air filter, ultraviolet lights and a photocatalytic filter; Air humidifying apparatus; Air purification units; Air purifiers; Air purifiers for household purposes; Air purifying apparatus; Air purifying apparatus and machines; Air purifying units for commercial, domestic, or industrial use; Anion generating humidifiers; Circulators in the nature of water heaters; Convection heaters; Dehumidifiers for commercial use; Dehumidifiers for household purposes; Dehumidifiers for household use; Electric heaters for commercial use; Electric radiant heaters for household purposes; Electric space heaters; Halogen heaters; Heaters for vehicles; Heaters for warming up portable toilets in cold weather; Household air cleaners; Humidifiers for central heating radiators; Humidifiers for household purposes; Humidifiers for household use; Humidifiers for musical instruments; Interior environment control system for commercial buildings, namely, heaters, ventilators and humidifiers all sold as a unit; Portable electric heaters; USB-powered humidifiers for household use