Abstract: Forming a filter for a gas lighter using a sintered porous ceramic, and adjusting the flow rate of gas through gas passages formed by interparticle pores of ceramic. There will be no change in the flame length even in the use of the gas lighter over a long period, thereby enhancing the safety of the gas lighter.

Abstract: In a liquid fuel gasifying device, a gasifying casing includes a press-fitted portion having an inside diameter equal to the outside diameter of a gas permeable ceramics filter, for receiving the front portion of the gas permeable ceramics filter in a press-fitted state, and a non-press-fitted portion continuing to the gas upstream side of the press-fitted portion and having a slightly larger inside diameter than the outside diameter of the gas permeable ceramics filter, for receiving the rear portion of the gas permeable ceramics filter in a non-press-fitted state. The length of the front portion of the gas permeable ceramics filter sealed with the inner surface of the gasifying casing, and the length of the rear portion of the gas permeable ceramics filter not shielded with the inner surface of the gasifying casing, are set to a length adjusted in accordance with the gas permeability characteristics of the gas permeable ceramics filter.