The ornamental design for chest shield for mannequin for CPR training, as shown and described.
FIG. 1 is a front view of a chest shield for mannequin for CPR training showing in my new design when installed on a mannequin;
FIG. 2 is a back view thereof when installed on the mannequin;
FIG. 3 is a side perspective view thereof;
FIG. 4 is a top perspective view thereof; and,
FIG. 5 is a back view thererof when removed from the mannequin.
The broken lines on the design are included for purposes of illustrating portions of the chest shield for mannequin for CPR training that form no part of the claimed invention. Additional broken lines depicting the mannequin for CPR training are for purposes of illustrating the environment of use, and also form no part of the claimed design.