April 16, 2007 - CPR Challenge Winners at 2007 EMS Today INVESTOR CONTACT: A. Ernest WhitonChief Financial OfficerZOLL Medical Corporation+1 (978) 421-9655 MEDIA CONTACT: Diane EganZOLL Medical Corporation+1 (978) email@example.com ZOLL Announces Top WInners of Its CPR Challenge at Recent 2007 EMS Today Conference CONFERENCE 11 and 13 Year Olds Among Top Performers Competing Against EMS Professionals with Support from Real CPR Help Technology April 16, 2007—CHELMSFORD, MASS.—ZOLL Medical Corporation (NasdaqGS: ZOLL), a manufacturer of resuscitation devices and related software solutions, today announced the top winners of the ZOLL CPR Challenge that took place in ZOLL’s booth during the recent EMS Today Conference and Expo 2007 in Baltimore, including two youths who out-performed many professionals in the hour in which they competed. Two-hundred and forty-five (245) attendees performed more than 40,000 chest compressions over the course of the conference. The CPR Challenge had participants performing two minutes of CPR on a 2005 American Heart Association (AHA)/European Resuscitation Council (ERC) Guidelines-compliant ZOLL AED Plus® or ZOLL AED Pro® with Real CPR Help™. Their chest compressions were measured and considered “In Target” when performed close to the AHA/ERC recommended rate of 100 compressions per minute (80 to 110 being the allowable range for this Challenge) and recommended depth of 1 ½ to 2 inches. Achieving the proper rate and depth recommended by AHA and ERC is necessary for maintaining blood flow to the brain and heart of a cardiac arrest victim. After an attendee completed two minutes of CPR, data were immediately downloaded wirelessly and evaluated on ZOLL RescueNet™ Code Review software in real time so that attendees could see for themselves the following information: The complete ECG that acts as a timeline for the entire rescue event; A readout of the frequency and depth of their CPR chest compressions; Their percentage of “Compressions in Target”; A visual representation of all compressions in terms of depth and rate; and Data points showing when audible prompts (e.g., “Push Harder” or “Good Compressions”) were communicated to the rescuer. The three CPR trainers with the highest percentage of compressions in target were: Tito Jackson from Ridgefield, NJ at 99.69%; John Spicuzza from Ft. Myers, Fla. at 99.50%; and Sgt. JB Wallace from Washington, D.C., with 99.02% of her CPR compressions in target. “This was the first time that I went directly from doing CPR to understanding how well I had performed it,” said Jackson, the top performer. “There is real value in being able to have this level of detail, given 2005 AHA Guidelines recommendations. The kind of detailed information I saw coming out of the ZOLL AEDs—literally minutes after performing CPR—is something that would be quite valuable in terms of training both healthcare professionals and lay rescuers.” Two other top performers of note were youngsters. One was 13 year-old Aaron David from Harrisburg, Penn, who had some previous CPR training, had 99.01% of his CPR compressions in target, whose CPR certification had lapsed. Another was 11-year-old Kyler Scheerer from Seaford, Del., who had 96.98% of his CPR compressions in target, with no previous training. The ZOLL Real CPR Help feature guided them and all participants with audible and visual prompts on rate and depth of compressions. Based on other CPR Challenges sponsored by ZOLL, the positive impact Real CPR Help prompting has on performance is significant. In those Challenges where this feedback system was turned off, nearly three-quarter of participants scored below 20% of compressions in target, with scores of zero not uncommon; the best scores in this scenario are typically in the range of 60% of compressions in target. This is not surprising, given that studies show that even when performed by professional rescuers, manual chest compressions result in rates that are too fast and depths that are too shallow.* ZOLL also conducted a brief survey with approximately 120 of the challenge participants. The survey found that a significant majority (92-94%): Said the Real CPR Help technology helped them perform compressions better during the CPR Challenge; Believed that ZOLL’s Real CPR Help could help during an actual cardiac arrest event; and Said that they would feel more comfortable doing chest compressions with the kind of feedback that ZOLL offers rather than without feedback. “The need for technology to improve CPR performance is something ZOLL has been taking seriously since the late 1990s, when it began developing the concept of real-time feedback we now call ‘Real CPR Help,’” said Richard A. Packer, President and CEO. “Since we introduced this feature on our AED Plus in 2002, the AHA has confirmed in its 2005 Guidelines that compressions are important, and research has confirmed that even professionals’ compressions are inadequate. We see ourselves as leading the way by offering a range of solutions that have the potential of becoming standards of care, from Real CPR Help to our AutoPulse®, which does automatic compressions consistently without involving human hands.” About ZOLL Medical Corporation ZOLL Medical Corporation is committed to developing technologies that help advance the practice of resuscitation. With products for pacing, defibrillation, circulation, ventilation, and fluid resuscitation, ZOLL provides a comprehensive set of technologies that help clinicians, EMS professionals, and lay rescuers resuscitate sudden cardiac arrest or trauma victims. ZOLL also designs and markets software that automates the documentation and management of both clinical and non-clinical information. ZOLL markets and sells its products in more than 140 countries. The Company has direct operations, distributor networks, and business partners throughout the U.S., Canada, Latin America, Europe, the Middle East and Africa, Asia, and Australia. Certain statements contained in this press release regarding matters that are not historical facts are“forward-looking” statements (as defined in the Private Securities Litigation Reform Act of 1995). Because such statements are subject to risks and uncertainties, actual results may differ materially from those expressed or implied by such forward-looking statements. Factors that could cause actual results to differ materially from those expressed or implied by such forward-looking statements include, but are not limited to, ZOLL’s ability to compete in the resuscitation business; acceptance of its recently launched products; changes in regulations affecting the healthcare industry; global economic conditions; and those other factors discussed in the section entitled “Risk Factors” in ZOLL’s Quarterly Report on Form 10-Q, which was filed with the SEC on February 9, 2007. * Clinical references available upon request. ©2007 ZOLL Medical Corporation. All rights reserved. 269 Mill Road, Chelmsford, MA 01824-4105. Real CPR Help and RescueNet are trademarks of ZOLL Medical Corporation. AED Plus, AED Pro, AutoPulse, and ZOLL are registered trademarks of ZOLL Medical Corporation. All product names are the property of their respective owners.