NSF® (National Sanitation Foundation) stands for National Sanitation Foundation. NSF is the most authoritative organization in the field of water safety testing worldwide, representing the highest level of product safety. There are 42 and 53 standards. All of our household drinking water products meet NSF 53 standards.

WQA (Water Quality Association) is the abbreviation of the American Water Quality Association. It is a non-profit international industry organization representing the water treatment industry and employees. From the perspective of representing the interests of the majority of water industry enterprises and employees, it provides comprehensive support and services to promote the healthy and effective development of the global water industry.

IAPMO (American International Association for Plumbing and Mechanical Official) IAPMO is the abbreviation of English International Association for Plumbing and Mechanical Official, which is headquartered in California, USA and is a non-profit organization.

Tested and issued by the Center for Disease Control and Prevention of the Ministry of Health of China, it is a state-level authoritative certification body.