A method of producing smoking articles, the method comprising the steps of: providing a continuous array of first filter members , second filter segments and tubular members , wherein a tubular member is provided between each pair of consecutive first filter members and wherein a second filter segment is provided between each first filter member and each tubular member , each second filter segment containing one or more breakable capsules, each breakable capsule comprising an outer shell and an inner core containing an additive; wrapping the continuous array of first filter members , second filter segments and tubular members with a continuous sheet of plug wrap to form a wrapped filter array, wherein the plug wrap has a basis weight of less than 90 grams per square metre; cutting the wrapped filter array at an intermediate position along each first filter member to provide multiple filter rods, each filter rod comprising two first filter segments , a tubular member positioned between the first filter segments and a second filter segment provided between each first filter segment and the tubular member ; providing a tobacco rod in axial alignment with and adjacent to each first filter segment of a filter rod; wrapping the filter rod and a portion of each tobacco rod in a tipping wrapper ; and cutting the tipping wrapper and the filter rod at an intermediate position along the length of the tubular member to form multiple smoking articles, each smoking article comprising a tobacco rod connected to a filter , wherein each filter comprises a first filter segment downstream of the tobacco rod , a second filter segment downstream of the first filter segment , and a hollow tube segment positioned between the second filter segment and the mouth end of the filter , the hollow tube segment defining a cavity at the mouth end of the filter . providing a continuous array of first filter members , second filter segments and tubular members , wherein a tubular member is provided between each pair of consecutive first filter members and wherein a second filter segment is provided between each first filter member and each tubular member , each second filter segment containing one or more breakable capsules, each breakable capsule comprising an outer shell and an inner core containing an additive; wrapping the continuous array of first filter members , second filter segments and tubular members with a continuous sheet of plug wrap to form a wrapped filter array, wherein the plug wrap has a basis weight of less than 90 grams per square metre; cutting the wrapped filter array at an intermediate position along each first filter member to provide multiple filter rods, each filter rod comprising two first filter segments , a tubular member positioned between the first filter segments and a second filter segment provided between each first filter segment and the tubular member ; providing a tobacco rod in axial alignment with and adjacent to each first filter segment of a filter rod; wrapping the filter rod and a portion of each tobacco rod in a tipping wrapper ; and cutting the tipping wrapper and the filter rod at an intermediate position along the length of the tubular member to form multiple smoking articles, each smoking article comprising a tobacco rod connected to a filter , wherein each filter comprises a first filter segment downstream of the tobacco rod , a second filter segment downstream of the first filter segment , and a hollow tube segment positioned between the second filter segment and the mouth end of the filter , the hollow tube segment defining a cavity at the mouth end of the filter . <EOS>