Webat unifirst, we believe in protecting the environment. That's why we continually focus on sustainability and strive to become a greener, more environmentally friendly company. Weball unifirst laundry detergents are “green” and environmentally friendly; They’re biodegradable and made from renewable resources that are free of phosphates and. Webthe comprehensive report is available in print and online and outlines the corporation’s ongoing social responsibility efforts in the areas of sustainability,.