11 kitchen range exhaust ventilator hoods, bathroom exhaust ventilator hoods, clothes dryer exhaust ventilator hoods, roof exhaust ventilator hoods, furnace air intake ventilator hoods, fresh air intake ventilator hoods; window dryer ventilators, window exhaust ventilators for clothes dryers, stoves, gas appliances; window air intake vents in the nature of vent hoods for stoves, boilers, furnaces, water heaters, gas appliances, hot water tanks, air conditioners, heat recovery ventilation, energy recovery ventilation, and anywhere fresh air make-up is required