Air conditioning apparatus; Air-conditioning, air cooling and ventilation apparatus and instruments; Bathroom exhaust fans; Ceiling fans; Electric fans; Electric heaters for commercial use; Electric heating fans; Electric radiant heaters; Electric space heaters; Electric window fans; Exhaust hoods for kitchens; Hoods for ranges; Oven ventilator hoods; Portable electric fans; Range hoods; Rooftop grease containment system comprising an exhaust fan, grease deflector, and filter for trapping grease vented from rooftop exhaust fans for cooking areas within the building; Ventilating exhaust fans; Ventilating fans for commercial and industrial use; Ventilating louvers; Ventilation fan accessories, namely, grilles; Ventilation hoods; Ventilation hoods for stoves