UNITED STATES

                    SECURITIES AND EXCHANGE COMMISSION

                           Washington, DC  20549


                                 FORM 8-K

                              CURRENT REPORT


                    Pursuant to Section 13 or 15 (d) of
                    the Securities Exchange Act of 1934


             Date of Report (date of earliest event reported):
                                May 5, 2004


                               AIRGAS, INC.
          ______________________________________________________
          (Exact name of registrant as specified in its charter)



   Delaware                     1-9344                    56-0732648
_______________         _______________________      ____________________
(State or other        (Commission File Number)      (I.R.S. Employer
 jurisdiction of                                      Identification No.)
 incorporation)



                 259 North Radnor-Chester Road, Suite 100
                          Radnor, PA  19087-5283
                 _________________________________________
                 (Address of principal executive offices)



Registrant's telephone number, including area code: (610) 687-5253
                                                    _______________



Item 12.  Disclosure of Results of Operations and Financial Condition
          ___________________________________________________________

On May 5, 2004, Airgas, Inc. (the "Company") reported its earnings for
its fourth quarter and fiscal year ended March 31, 2004, as described in
the press release attached as Exhibit 99.1 and incorporated herein by
reference.

The information contained in this Form 8-K report shall not be deemed
"filed" for purposes of Section 18 of the Securities Exchange Act of
1934 or incorporated by reference in any filing under the Securities
Exchange Act of 1933, as amended, except as expressly set forth by
specific reference in such a filing.

Non-GAAP Measures:
_________________

The press release attached as Exhibit 99.1 contains certain financial
measures that are not defined under generally accepted accounting
principles (GAAP).  Free Cash Flow is a non-GAAP measure that provides
investors meaningful insight into the Company's ability to generate cash
from continuing operations, which can be used at management's discretion
for acquisitions, the repayment of debt or to support other investing
and financing activities.  The Company uses the non-GAAP measure
Adjusted Debt to provide investors with a more accurate and meaningful
measure of the change in the Company's obligation to repay debt by
adjusting for the non-recourse debt of the National Welders joint
venture, non-cash interest rate hedging and funds received or repaid
under the trade receivables securitization program.

The Company's intent is to provide non-GAAP financial information to
enhance investors' understanding of the Company's consolidated
financial statements and should be considered by the reader in
addition to, but not instead of, the financial statements prepared in
accordance with GAAP.


Item 7.  Financial Statements, Pro Forma Financial Information and Exhibits
         __________________________________________________________________

(a)  None

(b)  None

(c)  Exhibits.

       99.1 - Press Release dated May 5, 2004



                                Signatures
                                __________

Pursuant to the requirements of the Securities and Exchange Act of 1934,
the Registrant has duly caused this report to be signed on its behalf by
the undersigned hereunto duly authorized.

                                     AIRGAS, INC.
                                     (Registrant)


                                     BY:  /s/ Robert M. McLaughlin
                                          -------------------------------
                                              Robert M. McLaughlin
                                              Vice President & Controller







DATED:     May 5, 2004