InfuSystem Holdings, Inc. (NYSE Amex:INFU) Set to Join Russell Microcap Index

MADISON HEIGHTS, Mich., June 20, 2011 (GLOBE NEWSWIRE) -- InfuSystem Holdings, Inc. (NYSE Amex:INFU) today announced that it will join the Russell Microcap® Index when Russell Investments reconstitutes its family of U.S. indexes on June 24, 2011, according to a preliminary list of additions posted June 17 on www.russell.com/indexes.

Membership in the Russell Microcap Index, which remains in place for one year, means automatic inclusion in the appropriate growth and value style indexes. Russell determines membership for its equity indexes primarily by objective, market-capitalization rankings and style attributes.

"We believe this announcement is another significant milestone event for our company and are pleased to be included among the well respected companies in this index as we continue the execution of our strategic and operational initiatives," commented Sean McDevitt, Chairman and CEO. "The inclusion of InfuSystem Holdings in the Russell Microcap Index will expose our company and its stock to a wider audience of institutional investors which we believe will ultimately benefit our long-term shareholders."

Russell indexes are widely used by investment managers and institutional investors for index funds and as benchmarks for both passive and active investment strategies. An industry-leading $3.9 trillion in institutional assets currently are benchmarked to them.

Annual reconstitution of Russell Indexes captures the 4,000 largest U.S. stocks, as of the end of May, ranking them by total market capitalization to create the Russell 3000® Index and Russell Microcap. These investment tools originated from Russell's multi-manager investment business in the early 1980s when the company saw the need for a more objective, market-driven set of benchmarks in order to evaluate outside investment managers.

More information on the Russell Microcap and other Russell Indexes, including daily returns, is available at http://www.russell.com/Indexes/data/default.asp.

About Russell

Russell Investments provides strategic advice, world-class implementation, state-of-the-art performance benchmarks and a range of institutional-quality investment products. Russell has more than $161 billion in assets under management as of March 31, 2011, and serves individual, institutional and advisor clients in more than 35 countries. Founded in 1936, Russell is a subsidiary of The Northwestern Mutual Life Insurance Company.

About InfuSystem Holdings, Inc.

InfuSystem Holdings, Inc. is the leading provider of infusion pumps and related services to hospitals, oncology practices and other alternate site healthcare providers. Headquartered in Madison Heights, Michigan, the company delivers local, field-based customer support, and also operates Centers of Excellence in Michigan, Kansas, California, and Ontario, Canada. The company's stock is traded on the NYSE Amex under the symbol INFU.

CONTACT: INVESTOR CONTACT:
         Pat LaVecchia
         Vice Chairman
         Info@InfuSystem.com
         Tel: (800) 962-9656

         MEDIA CONTACT:
         David Haar
         Info@InfuSystem.com
         Tel: (800) 962-9656

Released June 20, 2011