A "Green Seal" is a type of certification for products and services. It helps the consumer to identify environmentally friendly goods. The Green Seal organization is an independent 501(c)(3) nonprofit headquartered in Washington DC. It was founded in 1989 and started issuing standards in 1991. To find Green Seal certified products and services, you can visit the GreenSeal.org website and browse through various categories, such as "household cleaning products" or "windows and doors."

Green Seal is a 20-year-old, independent, non-profit organization dedicated to creating a more sustainable world. Green Seal created rigorous, science-based environmental certification standards, advising and assisting industry sectors in their efforts to green their purchasing, operations, and facilities management functions.

Check out their website at GreenSeal.org