Description What are ZOLL Replacement CPR-D-Padz? These pads are compatible with the ZOLL AED Plus device. They provide real-time CPR feedback and enable the responder to provide quality CPR during Sudden Cardiac Arrest. Inadequate compression rate and depth are common during CPR. Adult victims need at least 100 compressions per minute and at a depth of at least 2 inches (5 cm). Compressions must be done well to effectively move blood and oxygen. Alternatively, the ZOLL Stat-Padz which are also compatible with the ZOLL AED Plus does not provide CPR feedback.