PROBLEM TO BE SOLVED: To provide a gas detector that can suppress interference of an ozone gas and has higher selectivity of a detection target gas, and an ozone gas removal filter for removing an ozone gas.;SOLUTION: A gas detector of the present invention is a gas detector D including: a gas sensor 1 for detecting a detection target gas in a measurement target gas; and an ozone gas removal filter O being arranged above the gas sensor 1, for removing an ozone gas in the measurement target gas. The ozone gas removal filter O has a filter member including a material with smaller gas adsorption than that of an active carbon, silica gel, or zeolite in a surface.;SELECTED DRAWING: Figure 1;COPYRIGHT: (C)2021,JPO&INPIT
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