Ownership Submission
FORM 3
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
  Graff Leslie J
2. Date of Event Requiring Statement (Month/Day/Year)
08/15/2006
3. Issuer Name and Ticker or Trading Symbol
AIRGAS INC [ARG]
(Last)
(First)
(Middle)
C/O AIRGAS, INC., 259 N. RADNOR-CHESTER ROAD, SUITE 100
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Sr. VP - Corporate Development
5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

RADNOR, PA 19087
6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Beneficially Owned
1.Title of Security
(Instr. 4)
2. Amount of Securities Beneficially Owned
(Instr. 4)
3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)
4. Nature of Indirect Beneficial Ownership
(Instr. 5)
Common Stock 707 (1)
D
 
Common Stock 250
I
By Immediate Family
Common Stock 4,018 (2)
I
By 401(k) Plan

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)
2. Date Exercisable and Expiration Date
(Month/Day/Year)
3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)
4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)
6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares
Stock Option (Right to Buy)   (3) 05/14/2007 Common Stock 7,500 $ 15.63 D  
Stock Option (Right to Buy)   (3) 05/14/2008 Common Stock 5,000 $ 15.94 D  
Stock Option (Right to Buy)   (3) 03/04/2009 Common Stock 5,000 $ 8.5 D  
Stock Option (Right to Buy)   (3) 05/18/2009 Common Stock 6,250 $ 11.5 D  
Stock Option (Right to Buy)   (3) 02/11/2010 Common Stock 2,000 $ 6.94 D  
Stock Option (Right to Buy)   (3) 05/08/2011 Common Stock 6,970 $ 8.99 D  
Stock Option (Right to Buy)   (3) 03/11/2012 Common Stock 5,500 $ 19.3 D  
Stock Option (Right to Buy)   (4) 05/06/2012 Common Stock 7,500 $ 16.52 D  
Stock Option (Right to Buy)   (5) 05/12/2013 Common Stock 6,900 $ 19.22 D  
Stock Option (Right to Buy)   (6) 05/25/2014 Common Stock 10,000 $ 21.15 D  
Stock Option (Right to Buy)   (7) 08/04/2014 Common Stock 5,000 $ 21.51 D  
Stock Option (Right to Buy)   (8) 05/24/2015 Common Stock 10,000 $ 24.09 D  
Stock Option (Right to Buy)   (9) 05/23/2014 Common Stock 14,000 $ 36.17 D  

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
Graff Leslie J
C/O AIRGAS, INC.
259 N. RADNOR-CHESTER ROAD, SUITE 100
RADNOR, PA 19087
      Sr. VP - Corporate Development  

Signatures

Leslie J. Graff 08/24/2006
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 5(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) Includes 707 shares of Airgas, Inc. common stock acquired pursuant to Airgas, Inc.'s Employee Stock Purchase Plan ("ESPP") as of 8/15/2006, the date of the latest available statement of the reporting person's ESPP holdings.
(2) The information presented is as of 8/15/2006, the date of the latest available statement of the reporting person's holdings of Airgas, Inc. common stock in his 401(k) plan.
(3) These options are fully exercisable.
(4) These options have or will become exercisable, as applicable, in 25% annual increments on each of 5/6/2003, 5/6/2004, 5/6/2005 and 5/6/2006.
(5) These options have or will become exercisable, as applicable, in 25% annual increments on each of 5/12/2004, 5/12/2005, 5/12/2006 and 5/12/2007.
(6) These options have or will become exercisable, as applicable, in 25% annual increments on each of 5/25/2005, 5/25/2006, 5/25/2007 and 5/25/2008.
(7) These options have or will become exercisable, as applicable, in 25% annual increments on each of 8/4/2005, 8/4/2006, 8/4/2007 and 8/4/2008.
(8) These options will become exercisable in 25% annual increments on each of 5/24/2006, 5/24/2007, 5/24/2008 and 5/24/2009.
(9) These options will become exercisable in 25% annual increments on each of 5/23/2007, 5/23/2008, 5/23/2009 and 5/23/2010.

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