Inflator for a passive vehicle safety device

An inflator for generating inflation gases for a safety device, the inflator comprising:

• a housing having an internal cavity including a combustion chamber and a filter chamber;
• a filter disposed in the filter chamber, the filter including an axially extending opening;
• a separating member disposed in the housing on a first axial side of the filter and separating the filter chamber from the combustion chamber;
• an insulating member disposed on the filter chamber on a second axial side of the filter, the second axial side being opposite the first axial side,
• wherein the insulating member is radially and axially captured by the separating member.