The Greenguard Environmental Institute is an organization that helps people make sure that the things they use every day are safe for them and for the environment. They do this by testing and certifying different products, like furniture, flooring, and paint, to make sure they don't have harmful chemicals in them.
Think of it like a group of really smart grown-ups who check to make sure your toys are safe to play with - except instead of toys, they check things like couches and carpets. They want to make sure that you and your family don't get sick from things that you use in your home or office, and that the planet stays healthy too! They also help companies make better, healthier products by telling them what changes they need to make. So basically, they're like superheroes who look out for all of us and the planet we live on!