Metal roof vents for exhaust ventilation in residential and commercial buildings; Metal vent covers for dryer exhaust wall ducts; Metal vent cover for HVAC ducts; Metal vent covers for roof deck protrusions, drains and pitch pans

Filters that regulate air flow sold as an integral component of food storage containers

Air filters for domestic use for heating and cooling registers

VENTILATION SYSTEM COMPRISED OF VENTILATION, HOSE AND TUBES, EXHAUST FAN AND DUCT, HOSE CONNECTOR AND WALL BRACKETS, FOR VENTING AIR FROM THE TOILET BOWL

perforations incorporated as features of plastic bags