Intertherm Ventilaire IV Motor Only. VentilAire IV is an efficient way to introduce outdoor freshness to interior environments. Ventilaire IV replacement motor only. Features of Intertherm 622097R Ventilaire IV Motor Only When moisture-producing activities (cooking bathing etc.) are occurring operate exhaust fans Avoid hanging clothes to dry within your manufactured home Vent all fuel burning appliances Avoid using humidifiers Replacement motor only Package Contents: Intertherm 622097R Ventilaire IV Motor Only Intertherm 622097R: Ventilaire IV Motor Only