This paper presents the results of a study aimed at determining the feasibility of using catalytic oxidation to scavenge hydrogen from air. A series of experiments were conducted to assess the catalytic recombination characteristics of hydrogen in an air stream using 0.5% Pd/alumina catalysts. The H₂ to H₂O fractional conversion was determined at various inlet air temperatures (25∼150℃) and flow rates (5∼15 L/min.). The catalyst produced remarkable fractional conversion values up to 0.9 when operated at 150℃ with an apparent activation energy of about 3.17 ㎉/㏖ within a temperature range of 50∼150℃. The results show that the catalyst had a relatively low activated energy and possessed satisfactory characteristics for catalytic oxidation.