PPE stands for "personal protective equipment." PPE Category 3 refers to equipment that is complex and provide the highest level of protection such as powered respirators, SCBA, and full body suits. In Europe, PPE Category 3 must meet certain safety standards set by the European Union, which means that it must be designed and manufactured to protect the user without causing harm. Companies that make or sell PPE must prove that it meets these standards. They also must have a quality management system in place, have to be audited regularly by a notified body and have to have a technical documentation.

Food safe refers to the safety of food products that are used or consumed by people. In Europe, food safety is regulated by the European Union (EU) and the European Food Safety Authority (EFSA). These organizations set standards and requirements for food products to ensure they are safe to eat. To be considered "food safe" in Europe, a product must meet these standards and be free of harmful substances. This includes being free of harmful bacteria, pesticides, and other contaminants. Food products that do not meet these standards cannot be sold or used in the EU.