NSF & Houshold Water Filtration
Two NSF standards cover filtration systems: NSF/ANSI 42 addresses aesthetic claims and NSF/ANSI 53 addresses health claims.
NSF/ANSI Standard 42: Drinking Water Treatment Units – Aesthetic Effects
NSF/ANSI Standard 42 establishes the minimum requirements for the certification of POU/POE filtration systems designed to reduce specific aesthetic or non-health-related contaminants (chlorine, taste, odor and particulates) that may be present in public or private drinking water.
The scope of NSF/ANSI 42 includes material safety, structural integrity and aesthetic, non-health-related contaminant reduction performance claims. The most common technology addressed by this standard is carbon filtration.
NSF/ANSI Standard 53: Drinking Water Treatment Units – Health Effects
NSF/ANSI Standard 53 establishes the minimum requirements for the certification of POU/POE filtration systems designed to reduce specific health-related contaminants, such as Cryptosporidium, Giardia, lead, volatile organic chemicals (VOCs) and MTBE (methyl tertiary-butyl ether), that may be present in public or private drinking water.
The scope of NSF/ANSI 53 includes material safety, structural integrity and health-related contaminant reduction performance claims. The most common technology addressed by this standard is carbon filtration.
Shower Filters
NSF/ANSI Standard 177: Shower Filtration Systems – Aesthetic Effects
NSF/ANSI 177 was developed to cover the safety and performance of shower filtration products. Certification to NSF/ANSI 177 confirms your product’s material safety, structural integrity, minimum flow performance and its ability to reduce free available chlorine.
Related POE / POU (Point of Use) NSF Water Standards:
NSF/ANSI 42 Filters – Aesthetic Claims
NSF/ANSI 53 Filters – Health Claims
NSF/ANSI 58 Reverse Osmosis (RO)
NSF/ANSI 44 Softeners
NSF/ANSI 62 Distillation
NSF/ANSI 55 Ultraviolet (UV)
NSF/ANSI 177 Shower Filters