Allion Healthcare, Inc. to Present at the Thomas Weisel Partners

Healthcare Conference

MELVILLE, NY, September 6, 2006 – Allion Healthcare, Inc. (NASDAQ: ALLI), a national provider of specialty pharmacy and disease management services focused on HIV/AIDS patients, announced today it will participate in the Thomas Weisel Partners Healthcare Conference in Boston, Massachusetts at the Four Seasons Hotel, September 6^th through September 8^th.  In connection with the conference, there will be an on-line simulcast of the company’s presentation available on Allion Healthcare’s website, www.allionhealthcare.com, starting at 12:05 p.m. Eastern Time on Friday, September 8, 2006.  A replay of the presentation will also be available on the company’s website for 30 days.  Michael Moran, Allion’s Chairman, President and Chief Executive Officer, and James G. Spencer, Allion’s Chief Financial Officer, will be speaking at the conference.

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