Air-conditioning, air cooling and ventilation apparatus and instruments; Bathroom exhaust fans; Ceiling fans; Cooling fan systems for wall ovens; Electric fans; Fans for air conditioning apparatus; Fans for HVAC units; Portable electric fans; Roof fans; 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; Turbine ventilators; USB-powered desktop fans; Ventilating exhaust fans; Ventilating exhaust fans for indicate purpose, e.g., household use, gymnasiums, pet houses, etc.; Ventilating fans for commercial and industrial use; Ventilating fans for industrial purposes; Ventilating fans for indicate purpose, e.g., household use, gymnasiums, etc.; Ventilating, high-velocity fixed exhaust fans for commercial and agricultural use; Ventilating, high-velocity portable exhaust fans for commercial and agricultural use; Ventilation fan accessories, namely, grilles