Knee airbag with a two-stage inflator

There is a knee airbag module with an inflator, and a knee airbag (12) formed by the inflation between a lower portion of an instrument panel (40) and the knee-shin area of ​​a vehicle occupant inflatable, is described. To achieve a good protection for large, heavy occupants as well as small and light occupant, the inflator is formed in two stages, the second stage from the first stage is delayed ignitable.