January 20, 2005(1) INVESTOR CONTACT: A. Ernest WhitonChief Financial OfficerZOLL Medical Corporation+1 (978) 421-9655 MEDIA CONTACT: Diane EganZOLL Medical Corporation+1 (978) email@example.com FOR IMMEDIATE RELEASE ZOLL AED Plus Awarded American Dental Associations's Seal of Acceptance Thursday, January 20, 2005 – CHELMSFORD, MASS.—ZOLL Medical Corporation (NASDAQ: ZOLL), a manufacturer of resuscitation devices and software solutions, announced today that the ZOLL AED Plus™ automated external defibrillator (AED) received the American Dental Association’s (ADA) Seal of Acceptance for a three-year period. Fewer than 10 percent of the more than 200,000 medical and dental offices in the United States are equipped with an AED. In these offices, an AED can be an important piece of life-saving equipment given the fact that sudden cardiac arrest (SCA) is a leading cause of death. SCA can strike without warning and can kill within minutes; most victims have no prior symptoms.The ZOLL AED Plus is the only AED that can help rescuers perform effective CPR because it allows them to see and hear how well they are performing the rate and depth of chest compressions during CPR. This instantaneous feedback makes the AED Plus the only AED that can help assess and treat nearly every SCA victim, making it the only Full-Rescue AED available today.When a victim collapses from SCA, rescuers do not know whether defibrillation or CPR is the appropriate therapy until an AED is attached and the victim’s heart is analyzed. About half of all unresponsive victims initially require defibrillation. For the remaining victims, who may have non-shockable heart arrhythmias, the critical action for survival is effective CPR. ZOLL believes that an AED designed for infrequent rescuers must provide the best possible CPR support because, once an AED has determined that no shock is advised, the most helpful action for the victim is continuous, vigorous, and precise CPR. About the ADA Council of Scientific Affairs The ADA Council of Scientific Affairs’ acceptance of the ZOLL AED Plus is based on its finding that the AED Plus is effective in treating patients in ventricular fibrillation, a common cause of SCA, when used as directed. Approximately 400 companies participate in the ADA’s Seal program. Some 1,300 dental products carry the Seal of Acceptance, an important symbol of a product’s safety and efficacy. About the ADA The not-for-profit ADA is the nation’s largest dental association, representing more than 147,000 members. The premier source of oral health information, the ADA has advocated for the public’s health and promoted the art and science of dentistry since 1859. The ADA’s state-of-the-art research facilities develop and test dental products and materials that have advanced the practice of dentistry and made the patient experience more positive. The ADA Seal of Acceptance long has been a valuable and respected guide to consumer and professional products. For more information about the ADA, visit the Association’s web site at www.ada.org. About ZOLL Medical Corporation ZOLL Medical Corporation (NASDAQ: ZOLL) 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 can 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 data.ZOLL has operations in the United States, Canada, the United Kingdom, Germany, France, The Netherlands, Australia, and Austria. With direct operations, international offices, and business partners in all of the world’s major markets, ZOLL markets and sells its products in more than 140 countries.Certain statements contained in this press release, including statements regarding the anticipated development of ZOLL’s business, potential sales levels, its ability to differentiate its products from others on the market, and other statements contained herein 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 the ability of the ZOLL sales force to market successfully multiple resuscitation products, and those factors discussed in the section entitled “Risk Factors” in ZOLL’s Annual Report on Form 10-K/A filed on December 23, 2004.Copyright © 2005 ZOLL Medical Corporation. All rights reserved. 269 Mill Road, Chelmsford, MA 01824-4105. AED Plus is a trademark and ZOLL is a registered trademark of ZOLL Medical Corporation. All trademarks are property of their respective owners.