MELVILLE, NY, February 9, 2006 - Allion Healthcare, Inc. (NASDAQ: ALLI), a national provider of specialty pharmacy and disease management services focused on HIV/AIDS patients, will announce financial results for the fourth quarter and full year ended December 31, 2005 after the close of U.S. financial markets on Thursday, March 9, 2005. An accompanying conference call to discuss the results will be held at 5:30 p.m. EST; 2:30 p.m. PST.

To join the call, please dial (913) 981-4911 from the U.S. or abroad. The conference call will also be webcast on Allion Healthcare's website at www.allionhealthcare.com. To join the webcast, please go to Allion Healthcare's web site at least 15 minutes prior to the start of the conference call to register, download, and install any necessary audio software.

An audio replay of the conference call will be available through 11:59 p.m. EST on Thursday, March 16, 2006 by dialing 719-457-0820 from the U.S. or abroad and entering confirmation code 8846750. The audio webcast will also be available on the company's website, www.allionhealthcare.com, for 30 days.

Questions during the live call will be taken from investment professionals only.

About Allion Healthcare, Inc.

Allion Healthcare, Inc. is a national provider of specialty pharmacy and disease management services focused on HIV/AIDS patients. Allion Healthcare sells HIV/AIDS medications, ancillary drugs and nutritional supplies under our trade name MOMS Pharmacy offers nationwide pharmacy care from its pharmacies in New York, Washington, Florida and California. Allion Healthcare works closely with physicians, nurses, clinics and AIDS Service Organizations (ASOs), and with government and private payors, to improve clinical outcomes and reduce treatment costs for patients.


Contact:
Allion Healthcare, Inc.
Jim Spencer, Chief Financial Officer
(631) 870-5126

The Ruth Group
Francesca DeMartino, Investor Relations
(646) 536-7024; fdemartino@theruthgroup.com