A gas bag module comprises a gas generator and a rigid housing in which the gas generator is arranged. The zipper includes a pair of fastener strips respectively having male and female interlockable members formed thereon. The bottle system enhances the mixing effect, resulting in improved solubility, and provides for a self-contained uninterrupted mixing and feeding process. Once endpoint is detected, a signal can be used to terminate or alter a CMP process that has been previously initiated.