SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 13G (Rule 13d-102) (Amendment No. 2) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULES 13d-1(b), (c) AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2(b) CECO ENVIRONMENTAL CORP. ------------------------ (Name of Issuer) Common Stock ------------- (Title of Class of Securities) 125141101 --------- (CUSIP Number) December 31, 2005 ----------------- (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is filed: [ ] Rule 13d-1(b) [X] Rule 13d-1(c) [ ] Rule 13d-1(d) CUSIP No. 125141101 Page 2 of 4 1 Name of Reporting Persons I.R.S. Identification Nos. of above persons (entities only) Harvey Sandler Revocable Trust 2 Check the Appropriate Box if a Member of a Group (See Instructions) a. [ ] b. [ ] 3 SEC Use Only 4 Citizenship or Place of Organization Florida Number of 5 Sole Voting Power Shares 1,313,743 Beneficially Shared Voting Power Owned By 6 0 Each Sole Dispositive Power Reporting 7 1,313,743 Person Shared Dispositive Power With 8 0 9 Aggregate Amount Beneficially Owned by Each Reporting Person 1,313,743 shares of Common Stock 10 Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] 11 Percent of Class Represented By Amount in Row (9) 13.2% 12 Type of Reporting Person (See Instructions) OO CUSIP No. 125141101 Page 3 of 4 Amendment No. 2 to Schedule 13G This Amendment No. 2 to Schedule 13G relating to the common stock of CECO Engironmental Corp. is being filed to reflect the shares of the Issuer's Common Stock benenfically owned by the rpeorting person as of December 31, 2005 Item 4. Ownership. Provide the following information regarding the aggregate number and percentage of the class of securities of the issuer identified in Item 1. Harvey Sandler Revocable Trust (a) Amount beneficially owned: 1,313,743 shares of Common Stock, $0.01 par value, of CECO Environmental Corp. (b) Percent of class: 13.2% (c) Number of shares as to which the person has: i) Sole power to vote or to direct the vote: 1,313,743 shares ii) Shared power to vote or to direct the vote: 0 shares iii) Sole power to dispose or to direct the disposition of: 1,313,743 shares iv) Shared power to dispose or to direct the disposition of: 0 shares Item 10. Certifications. By signing below the undersigned certifies that, to the best of its knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect. CUSIP No. 125141101 Page 4 of 4 SIGNATURE After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct. Date: April 5, 2006 HARVEY SANDLER REVOCABLE TRUST By: -------------------------------- Name: Harvey Sandler Title: Sole Trustee