Appeal No. 1998-1315 Application No. 08/334,751 breathable oxygen source comprising: an exclusively dry multi-stage filtering means for converting atmospheric gases into breathable air; a mask having a first and second mask aperture, said mask constructed and arranged to conform to the contours of a user’s mouth and nose region, said mask connected to said means for converting at said first mask aperture, said mask having an exhalation valve; and means for retaining said mask tightly on a user’s mouth and nose regions at said second mask aperture, said means for retaining connected to said mask; wherein said device provides protection to a user, from heat, noxious and/or toxic gases which might be present during hypoix and fire emergencies. Dale Paul Dimaggio Malin Haley Dimaggio & Crosby Suite 1609 One East Broward Boulevard Fort Lauderdale FL 33301 19Page: Previous 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19Last modified: November 3, 2007