Masimo to Report Third Quarter 2007 Financial Results on October 30, 2007

October 18, 2007

Conference call and webcast with Masimo CEO and CFO to begin after markets close at 2:00 pm PT (5:00 pm ET)

IRVINE, Calif., Oct. 18 /PRNewswire-FirstCall/ -- Masimo Corporation (Nasdaq: MASI), the inventor of Pulse CO-Oximetry and Read-Through Motion and Low Perfusion pulse oximetry, today announced it will release third quarter financial results for the period ended September 29, 2007 after the market closes on Tuesday, October 30, 2007.

A conference call to review the results will begin at 2:00 p.m. PT (5:00 p.m. ET) and will be hosted by Joe E. Kiani, Chairman and Chief Executive Officer, and Mark P. de Raad, Executive Vice President & Chief Financial Officer.

A live web cast of the conference call will be available online from the investor relations page of the Company's corporate web site at http://www.masimo.com. The dial-in numbers are (800) 659-2037 for domestic callers and (617) 614-2713 for international callers. The reservation number for both dial-in numbers is 20647778. After the live web cast, the call will remain available on Masimo's web site through November 30, 2007. In addition, a telephonic replay of the call will be available until November 13, 2007. The replay dial-in numbers are (888) 286-8010 for domestic callers and (617) 801-6888 for international callers. Please use reservation code 39086455.

About Masimo

Masimo (Nasdaq: MASI) develops innovative monitoring technologies that significantly improve patient care-helping solve "unsolvable" problems. In 1995, the company debuted Read-Through Motion and Low Perfusion pulse oximetry, known as Masimo SET, and with it virtually eliminated false alarms and increased pulse oximetry's ability to detect life-threatening events. More than 100 independent and objective studies have confirmed that Masimo SET technology allows clinicians to accurately monitor blood oxygen saturation in critical care situations. Our Masimo SET platform has significantly addressed many of the previous technology limitations, has substantially contributed to improved patient outcomes and has been referred to by several industry sources as the gold standard in pulse oximetry. In 2005, Masimo introduced Masimo Rainbow SET Pulse CO-Oximetry, which, for the first time, noninvasively monitors the level of carbon monoxide and methemoglobin in the blood, allowing early detection and treatment of potentially life-threatening conditions. Founded in 1989, Masimo has the mission of "Improving Patient Outcomes and Reducing Cost of Care by Taking Noninvasive Monitoring to New Sites and Applications." Additional information about Masimo and its products may be found at http://www.masimo.com.

Investor Contact:
Mark P. de Raad
Executive Vice President and Chief Financial Officer
(949) 297-7080
mderaad@masimo.com

Media Contact:
Tom McCall
Vice President, Corporate Communications
Masimo Corporation
949-297-7075
tmccall@masimo.com

Masimo, SET, Signal Extraction Technology, Radical, Radical-7, Rad57, APOD, and Improving Outcomes and Reducing Cost of Care by Taking Noninvasive Monitoring to New Sites and Applications are registered trademarks of Masimo Corp. ARM, Acoustic Respiratory Monitoring, BiFi, Rainbow, Patient SafetyNet, SpCO, SpMet, SpHb, PVI and Pulse CO-Oximeter are trademarks of Masimo Corp.

SOURCE Masimo Corporation