NSF/ANSI 61 is the designated collaboration center for the World Health Organization (WHO) on food safety and drinking water safety and treatment. Products that have passed NSF/ANSI 61 testing and meet NSF/ANSI 61 standards are authorized to use the NSF/ANSI 61 logo. Therefore, any product authorized to be printed with the NSF/ANSI 61 logo means that the product is confirmed in the following aspects:
1. Able to achieve the ability to remove impurities as indicated in the product manual;
2. The materials that make up the product do not add pollutants to the water during the process of water treatment;
3. Meet the design and production process requirements;
4. Product does not have structural and functional defects;
5. The certification standards shown in the advertisements, sample materials and identifications of the products are true and accurate.