I'm sure many of you already know what this is, but for those who don't, basically it's a conformity marking for certain products sold within the European Economic Area, which declares that the product meets applicable standards. So I wondered, why are sunglasses a product that requires a CE mark? The answer: they fall under the category of Personal Protective Equipment (PPE). So I wondered, why are they considered PPE? Most of them aren't sold as safety glasses. The answer to that one isn't as clear - PPE is defined as: "Equipment intended to be worn or held by a person for protection against one or more risks for his or her health or safety that is placed on the market separately or combined with personal non-protective equipment." Which would make sense, since they protect your eyes from unhealthy UV. But there is also a statement about which PPE are out-of-scope of the regulation, with one of those exceptions being: PPE "intended for private use to protect against atmospheric conditions that are not of an extreme nature." I would think that would apply to sunglasses, but apparently not. And that leads to the open question for this thread... Maybe knowing what the specific standards sunglasses must meet for CE are would illuminate why they are considered in-scope PPE. But I can't find what those specific standards are. Does anyone know? @Rustpot?