All weather electric indoor/outdoor heat exchanger face mask

A method of heating and moisturizing breathing air within a face mask comprising the steps of:

• placing a mask on the face of a user, said mask comprising a housing covering the nose and mouth of said user, said housing having a front opening.
• inserting into said front opening a valve member removably fitted thereinto, said valve member having openings for incoming and exhaled air, and having a concave shaped inner frame nested in said valve member enclosing a minimally restrictive breathing chambers, said inner frame having an opening to accommodate said valve member openings allowing otherwise unrestricted flow of both said incoming and exhaled air through said face mask;
• heating mingled incoming and exhaled air within said minimally restrictive breathing chamber whereby turbulence of mixed inhaled colder air and exhaled warmer and moister air allows a user to inhale heated and humidified air;
• using controllable heating means comprising a strip of heat generating conductive resistive material mounted on a surface of a support bar extending through said breathing chamber from one side of said inner frame to another side of said inner frame for heating said mingled air;
• whereby inspired unrestricted and unimpeded cold air is heated in said minimally restrictive breathing chamber and goes directly in the mouth and nose of the user;
• and
• providing a source of electric energy for said heating means.