Jiujiu brand DHX ozone sterilizer

Let me clarify: ISO900 1 certification is a quality management system certification, which is different from product certification. ISO900 1 certification can only provide a kind of quality assurance, ensuring that the products of enterprises are reassuring, but it cannot guarantee that the products 100% are qualified. Therefore, it doesn't matter if you don't pass the ISO900 1:2000 certification when querying products. It has passed the product certification, which is more reassuring.