Hvac system for removal of moisture of air flowing therethrough

A heating and ventilation system comprising:

• a housing that includes an air inlet and an air outlet, the air inlet comprising a first inlet that is aligned to receive air flowing from a passenger compartment of a vehicle that includes the housing when the housing is installed within the vehicle, and a second inlet that is configured to receive air from outside of the vehicle;
• wherein the air outlet receives air from the first and second inlets and allows the air from the first and second inlets to flow to a fan;
• the housing supports a semipermeable membrane that is aligned with the first inlet such that air that flows through the first inlet flows through the semipermeable membrane before flowing to the air outlet, and wherein air flowing through the second inlet does not flow through the semipermeable membrane;
• a first port that is fluidly connected to the housing such that water vapor that flows into the first port from the housing flows from the semipermeable membrane;
• the housing further comprising a valve disposed within the housing that is positionable in a first position to allow air flow from the first air inlet through the semipermeable membrane to the air outlet and prevent flow from the second inlet to reach the air outlet, and is positionable in a second position that allows air flow from the second inlet to reach the air outlet and prevents air flow from the first air inlet and the semipermeable membrane to reach the air outlet.