The invention provides a gas generator comprising an ion membrane electrolytic cell and an atomized/volatile gas mixing tank. The ion membrane electrolytic cell comprises an ion exchange membrane, a cathode chamber and an anode chamber. An anode electrode is set in the anode chamber, and a cathode electrode is set in the cathode chamber. The ion exchange membrane is set between the anode chamber and the anode chamber. When water is electrolyzed by the ion membrane electrolytic cell, oxygen is generated by the anode electrode and hydrogen is generated by the cathode electrode. The atomized/volatile gas mixing tank coupled to the ion membrane electrolytic cell accepts the hydrogen generated from the ion membrane electrolytic cell and generates an atomized gas to mix the hydrogen for generating a health gas.本發明提供一種氣體產生器，其包含離子膜電解槽以及霧化/揮發氣體混合槽。離子膜電解槽包含一離子交換膜、一陰極室以及一陽極室，陽極室中設置一陽極電極且陰極室中設置一陰極電極，離子交換膜設置於陰極室以及陽極室之間。其中於離子膜電解槽電解水時陽極電極產生氧氣，陰極電極產生氫氣。霧化/揮發氣體混合槽連接離子膜電解槽並接收由離子膜電解槽所產生之氫氣，並產生一霧化氣體與該氫氣混合，以形成一保健氣體。
