The present invention provides a gas generator and comprises an electrolytic cell, a condensate filter device, and an atomizing device. The electrolytic cell is for electrolyzing electrolyzed water to generate a gas mixture of hydrogen and oxygen. The condensate filter device includes a gas pathway, a filter, and an isolated component. The isolated component is fixed the filter to set in the gas pathway. The gas generated from the electrolytic cell is condensed and filtered through the filter, and to generate a filtered gas mixture of hydrogen and oxygen. The atomizing device is for generating an atomizing gas, and combined with the filtered gas to generate a healthy gas. The present invention uses the condensate filter device to filter out the electrolyte from the filtered gas mixture of hydrogen and oxygen to be combined with the atomizing gas for generating the healthy gas.本發明提供一種氣體產生器,包含電解槽、冷凝過濾裝置及霧化裝置。電解槽用以電解容置其內之含有電解質的電解水而產生氫氧混合氣體。冷凝過濾裝置包含氣體流道、過濾材及隔離件,隔離件用以固定過濾材於氣體流道內,電解槽所產生之氫氧混合氣體藉由氣體流道內之過濾材冷凝並過濾其中之電解質,以產生過濾後之氫氧混合氣體。霧化裝置用以產生一霧化氣體並與過濾後之氫氧氣體混合成一保健氣體。本發明藉由冷凝過濾裝置之過濾材過濾氫氧混合氣體內之電解質,並與霧化氣體混合,以提供適合人體吸收之保健氣體。1‧‧‧氣體產生器12‧‧‧電解槽14‧‧‧冷凝過濾裝置16‧‧‧霧化裝置18‧‧‧濕化裝置181‧‧‧濕化裝置之加水口