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Hawaii Office
1833 Kalakaua Avenue - #203
HonoluluHI 96815
Tel: (808) 628-2120

Fax: (808) 628-2121

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Mark Hartman - Principal, President & Sales Manager

BSME FROM UNIVERSITY OF NEBRASKA IN 1979. Mark worked with a mechanical contractor in Nebraska while in college. For two years following college, he worked as an Estimator and Project Manager. He then became a Sales Engineer for a representative, handling a broad range of HVAC products. This included custom penthouse and air handling equipment. In 1983, he became a partner in a representative firm in Oklahoma. Mark joined Air Treatment Corporation in 1986. He became Sales Manager in 1996. In 2001, Mark became the President of Air Treatment Corporation.

The employees of Air Treatment Corporation are committed to a company goal of providing “Engineering Excellence and Unsurpassed Customer Service.”

Deborah Hudson - Chief Financial Officer / Operations Manager

Debbie attended Cal Poly Pomona and studied Finance, Insurance and Law. She is in charge of the finances and accounting department for the company. Debbie oversees the company operations and supervises the administrative staff. She has been an owner of Air Treatment Corp. since 1983.
Tim Thomas - Vice President

B.S. DEGREE IN BUSINESS ADMINISTRATION AND A.S. DEGREE IN ENGINEERING FROM JOHN BROWN UNIVERSITY OF ARKANSAS. Tim was a Construction Project Manager at several large mechanical contractors handling multi-million dollar HVAC projects in the Los Angeles/Orange county areas. He opened and started new branch offices for Air Treatment in San Diego and Hawaii. Tim joined Air Treatment Corporation in 1988.
Dennis Kephart - Sales Engineer

Dennis attended Iowa State University. He possesses an Iowa Mechanical Contractor’s license, is a member of ASHRAE, and has worked in the HVAC Industry for the past 38 years. He spent 18 years as a Union Sheet Metal Worker in the role of Project Manager/Estimator, then owned a light commercial contracting business for several years. He was a Mechanical Designer for an engineering firm for 6 years, followed by 5 years as an Outside Sales Engineer for a mechanical contractor. Dennis moved to Hawaii in 2004 and worked for a mechanical contractor (Listed in top 100 Mechanical Contractors in the US) as Direct Sales Estimator before joining Air Treatment Corporation in 2007.
Ryan Lee - Sales Engineer

BSME FROM GONZAGA UNIVERSITY, 2000. Since college Ryan has designed and sold custom HVAC equipment as a manufacturer’s representative and supported a network of rep offices as regional sales manager for a leading manufacturer of HVAC products. Ryan joined Air Treatment’s Hawaii office in May 2007
Lulu Cey - Project Assistant

After studying Marketing Management for 3 years at Cal Poly Pomona, LuLu graduated with a B.S.B.A. in Marketing from Hawaii Pacific University the next year. She was an Account Executive at Sprint for 5 years prior to obtaining her Resident Casualty, Marine, Property, Surety & Vehicle producer license to become a licensed sales insurance agent. At Air Treatment Corporation Hawaii, LuLu directly assists Tim Thomas in all aspects of project management.
Barbara Lohman - Accounting Manager

Barbara is a graduate of California State Polytechnic University at Pomona, with a BS Degree in Business Administration. She maintains the General Ledger and oversees Accounts Payable functions. She joined Air Treatment Corp. in 1999.
Anette Reichig - Credit Manager

Annette spent ten years with Carrier Corporation’s Los Angeles credit department. When Southern California Air Conditioning Distributors bought the Carrier branch, she remained for an additional eight years. Annette joined Air Treatment Corporation in 1998.