July 28, 2008

Cintas Transitions to NPE-Free Detergents

Cintas Corporation, in conjunction with Washing Systems, LLC (WSI) announced today it has become the first major industrial launderer to transition company-wide from a Nonylphenol Ethoxylate (NPE) - based detergent to a new, more environmentally friendly detergent for use in its industrial laundry facilities.

With more than 175 facilities in North America, Cintas has begun the transition in several of its locations and plans to be completely NPE-free by the end of 2008.

Benefits of the NPE-free detergent include:

-- Energy Conservation: NPE-free detergents use plant oil derivatives, a renewable resource that decreases the global dependence on fossil fuels.

-- Environmental Protection: NPE-free detergents use biodegradable surfactants, less toxic byproducts and solvents that do not pollute the air. The ability to biodegrade faster relieves stress on the environment.

-- Worker/Consumer Safety: The NPE-free detergent has a mild pH, low volatility and low combustibility, which further ensure a safe workplace.

"Cintas is committed to serving as an environmental steward and being pro-active in meeting the needs of our customers, communities in which we do business and our employee-partners," said Scott Farmer, CEO of Cintas Corporation. "We look forward to continuing to work within our industry to promote innovative solutions that benefit the environment," he added.

Eclipse, the WSI product being introduced at Cintas facilities, uses surfactants endorsed by CleanGredients, an EPA program that endorses products with positive environmental characteristics.

"WSI has been working on this technology for three years, and we are delighted to serve Cintas with our NPE-free product," said Bobby Fisher, CEO of Washing Systems, LLC.

WSI recently signed a partnership agreement with the Environmental Protection Agency's (EPA) Design for the Environment Program, an initiative that seeks to promote innovative chemical products, technologies and products for commercial formulators.

"This partnership with the EPA is an extension of our mission to develop and advance environmentally-friendly industrial products and practices for customers like Cintas," Fisher added.

About Cintas Corporation:

Headquartered in Cincinnati, Ohio, Cintas Corporation provides highly specialized services to businesses of all types throughout North America. Cintas designs, manufactures and implements corporate identity uniform programs, and provides entrance mats, restroom supplies, promotional products, first aid and safety products, fire protection services and document management services to approximately 800,000 businesses. Cintas is a publicly held company traded over the Nasdaq National Market under the symbol CTAS, and is a Nasdaq-100 company and component of the Standard & Poor's 500 Index. The Company has achieved 39 consecutive years of growth in sales and earnings, to date.

About Washing Systems, LLC:

Washing Systems, LLC (WSI), is the leading provider of laundry products and services to the North American laundry industry. Formed in 1989, WSI services approximately 500 laundry operators. The company's history is marked with innovations in washroom chemistry technology featuring 28 patents and its trademark "Rapid Rate Cleaning(TM)" process. WSI has built a reputation of comprehensive customer service, known throughout the industry as WSI's "Five-Star Service (C)." Combining the company's heritage in developing advanced washroom technology with its comprehensive approach to service, WSI is driven by improving quality, solving problems, reducing costs, and increasing profitability in the customers' operations.