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| History Timeline |
| 1990: The Suva® Family
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 The Clean Air Act Amendments of 1990 established a production phase out schedule and yearly reduction percentage for ozone-depleting chemicals. In 1996, CFCs are phased out in the U.S.
Accelerating a process that normally would take 15-20 years to develop, test and commercialize, DuPont spends over $500 million and takes only four years to introduce the Suva® family of refrigerants. These low- or non ozone-depleting products, called HCFCs and HFCs, help enable an economical, non-disruptive global transition that is still underway in developing countries
The DuPont™ Suva® family provides safe high-performance alternatives for automotive, residential and commercial air-conditioning systems, home refrigerators, supermarket display cases and other commercial refrigeration uses.
As in the 1930s, when CFCs revolutionized the refrigeration industry, DuPont unveils a string of new products, beginning with Suva® 134a and Suva® 123 in 1991, MP39, MP66, HP80 and HP81 - all in 1992 - and HP62 a year later.
In 1994, Suva® refrigerants become available for all refrigeration applications. Suva® 407C receives UL approval, replacing HCFC-22 DX applications. Suva® 95 is introduced for lower discharge temperatures while offering greater cooling capacity. DuPont extends its product line to include Suva® 408A, 409A and 410A. Most important, the Suva® refrigerants are globally accepted as safe and environmentally superior alternatives to the CFCs that had been the backbone of the refrigeration and air conditioning industry for more than 60 years.
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