The present invention relates to a CPR training apparatus, It consists of a pressurizing part, a supporting part, and a hermetically sealed corrugated tube with a spring that can be coupled between the pressurizing part and the supporting part to reduce the size of the existing CPR training device significantly and to improve storage and transportability. The user can adjust the pressing force according to the adult or infant's mouth by using the inlet and outlet holes communicating with the space portion and the inlet and outlet holes of the supporting portion and further have protrusions which can be engaged with the inner wall of the pressing portion and the outer wall of the supporting portion, The present invention relates to a CPR training apparatus which is constructed so that the volume of the corrugated pipe can be reduced by combining a pressurizing portion and a supporting portion when the CPR is not performed and can be easily stored or transported.
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