Ventilation fan accessories, namely, grilles; Ventilating louvers; Ventilating fans for commercial and industrial use; Drying apparatus for use in heating, ventilation systems, air conditioning systems and refrigeration systems; Ventilation units for commercial food preparation and food serving; Accessories for fireplaces, namely, ventilation hoods for fireplaces for use in ventilation and deflecting heat from the top of a fireplace; Ventilating exhaust fans; Direct vents for gas appliances; ...