Press Releases

---------------------------------------------------------------- FOR IMMEDIATE RELEASE

CONTACTS:	César García, Chairman and Chief Executive Officer
	818-709-1244
	-or-
	Ron Stabiner, The Wall Street Group, Inc.
	212-888-4848

IRIS TO PRESENT AT THE 5TH ANNUAL CRAIG-HALLUM INSTITUTIONAL INVESTOR CONFERENCE MAY 20, 2008

CHATSWORTH, Calif., May 13, 2008 - IRIS International, Inc. (NASDAQ: IRIS), a leading manufacturer of automated in vitro diagnostics systems and consumables for use in hospitals and commercial laboratories worldwide, today announced that Chairman, President and Chief Executive Officer César García will present an overview of the Company at the 5th Annual Craig-Hallum Institutional Investor Conference at 2:50 p.m. Central time on Tuesday, May 20, 2008 at the Radisson Plaza Hotel in Minneapolis, Minn.

More than 50 companies from a variety of industries, including medical device manufacturers, will participate in the conference sponsored by Craig-Hallum, an institutional equity and investment-banking firm. During the conference, executives from each company will participate in private one-on-one sessions with select institutional investors. The conference is only for clients of Craig-Hallum and the sessions will not be webcast.

About IRIS International
IRIS International is a leading global in vitro diagnostics company focused on products that analyze particles and living cell forms and structures, or morphology of a variety of body fluids. Our products leverage our strengths in flow imaging technology, particle recognition and automation to bring efficiency to hospital and commercial laboratories. The initial applications for our technology have been in the urinalysis market and we are the leading worldwide provider of urine microscopy systems, with an installed based of over 1,800 systems in over 50 countries.