Learn about NSF/ANSI Standard Certification with Waterdrop

NSF/ANSI standard certification is an important approval for water purificattion products, confirming they meet strict public health standards.

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Hidden Dangers in Your Water: Find Out What's Lurking

Curious About the Contaminants in Your Area?

Enter Your Zip Code

Please enter a valid zipcode.

  • Explore the hidden impurities in your tap water
  • Uncover the potential health hazards of these contaminants
  • Receive effective water filtration solutions for your home

Waterdrop works with the Environmental Working Group (EWG) to unveil the truth about your tap water. Just enter your zip code to uncover specific contaminants, their potential impacts, and discover the best ways to safeguard yourself and your loved ones.

* Data Source: licensed from Environmental Working Group, www.ewg.org.

Hidden Dangers in Your Water: Find Out What's Lurking

Curious About the Contaminants in Your Area?

Enter Your Zip Code

Please enter a valid zipcode.

  • Explore the hidden impurities in your tap water
  • Uncover the potential health hazards of these contaminants
  • Receive effective water filtration solutions for your home

Waterdrop works with the Environmental Working Group (EWG) to unveil the truth about your tap water. Just enter your zip code to uncover specific contaminants, their potential impacts, and discover the best ways to safeguard yourself and your loved ones.

* Data Source: licensed from Environmental Working Group, www.ewg.org.

A Standard You Can Trust for Every Step of Your Water Journey

Contaminants Removal Overview

NSF/ANSI 58

NSF/ANSI 42

NSF/ANSI 53

NSF/ANSI 401

NSF/ANSI 372

NSF/ANSI Standard Certification stands for National Sanitation Foundatioon

Contaminants NSF/ANSI 58 NSF/ANSI 42 NSF/ANSI 53 NSF/ANSI 401
Arsenic
Lead
Fluoride
Chlorine
PFOA/PFOS
Ibuprofen
VOCs
TDS

NSF/ANSI 58: Reverse Osmosis Drinking Water Treatment Systems

The nsf certified meaning under the NSF/ANSI 58 standard focuses on reverse osmosis (RO) systems, ensuring they effectively reduce contaminants from water. With this certification, you can trust that your water is pure and safe.

Test Parameter Requirement
Total Dissolved Solids (TDS) Must reduce by at least 75%
Arsenic Water output concentration less than 0.01 mg/L
Lead Must reduce by at least 96.7%
View Info

NSF/ANSI 42: Improving Taste and Odor

Products certified under NSF/ANSI 42 effectively reduce chlorine and other odors, enhancing the taste of your water. Enjoy every sip with fresh and clean water.

Test Parameter Requirement
Chlorine Taste and Odor Must reduce by at least 50%
Particulates (Class I) Must remove at least 85% of 0.5 to <1 micron particles
View Info

NSF/ANSI 53: Reducing Health-Related Contaminants

The NSF certification under NSF/ANSI 53 ensures that our water treatment systems remove harmful contaminants like lead, mercury, asbestos, and volatile organic compounds. Drink confidently, knowing your water is safe.

Test Parameter Requirement
Lead Must reduce by at least 96.7%
Cysts Must remove at least 99.95%
Atrazine Must reduce by at least 66.7%
Volatile Organic Compounds (VOCs) Must reduce by at least 95%
View Info

NSF/ANSI 401: Tackling Emerging Contaminants

What does NSF mean in the context of NSF/ANSI 401? It means our products are designed to reduce emerging contaminants, such as pharmaceuticals and herbicides. Choose our products to protect your family from these hidden threats.

Test Parameter Requirement
Ibuprofen Must reduce by at least 85%
DEET Must reduce by at least 86%
View Info

NSF/ANSI 372: Lead-Free Compliance

NSF certified products under NSF/ANSI 372 guarantee that all materials used are lead-free. Protect your health by ensuring your water is lead-free.

Test Parameter Requirement
Lead Content No more than 0.25% weighted average
View Info

A Standard You Can Trust for Every Step of Your Water Journey

Contaminants Removal Overview

NSF/ANSI 58

NSF/ANSI 42

NSF/ANSI 53

NSF/ANSI 401

NSF/ANSI 372

NSF/ANSI Standard Certification stands for National Sanitation Foundatioon

Contaminants NSF/ANSI 58 NSF/ANSI 42 NSF/ANSI 53 NSF/ANSI 401
Arsenic
Lead
Fluoride
Chlorine
PFOA/PFOS
Ibuprofen
VOCs
TDS

NSF/ANSI 58: Reverse Osmosis Drinking Water Treatment Systems

The nsf certified meaning under the NSF/ANSI 58 standard focuses on reverse osmosis (RO) systems, ensuring they effectively reduce contaminants from water. With this certification, you can trust that your water is pure and safe.

Test Parameter Requirement
Total Dissolved Solids (TDS) Must reduce by at least 75%
Arsenic Water output concentration less than 0.01 mg/L
Lead Must reduce by at least 96.7%
View Info

NSF/ANSI 42: Improving Taste and Odor

Products certified under NSF/ANSI 42 effectively reduce chlorine and other odors, enhancing the taste of your water. Enjoy every sip with fresh and clean water.

Test Parameter Requirement
Chlorine Taste and Odor Must reduce by at least 50%
Particulates (Class I) Must remove at least 85% of 0.5 to <1 micron particles
View Info

NSF/ANSI 53: Reducing Health-Related Contaminants

The NSF certification under NSF/ANSI 53 ensures that our water treatment systems remove harmful contaminants like lead, mercury, asbestos, and volatile organic compounds. Drink confidently, knowing your water is safe.

Test Parameter Requirement
Lead Must reduce by at least 96.7%
Cysts Must remove at least 99.95%
Atrazine Must reduce by at least 66.7%
Volatile Organic Compounds (VOCs) Must reduce by at least 95%
View Info

NSF/ANSI 401: Tackling Emerging Contaminants

What does NSF mean in the context of NSF/ANSI 401? It means our products are designed to reduce emerging contaminants, such as pharmaceuticals and herbicides. Choose our products to protect your family from these hidden threats.

Test Parameter Requirement
Ibuprofen Must reduce by at least 85%
DEET Must reduce by at least 86%
View Info

NSF/ANSI 372: Lead-Free Compliance

NSF certified products under NSF/ANSI 372 guarantee that all materials used are lead-free. Protect your health by ensuring your water is lead-free.

Test Parameter Requirement
Lead Content No more than 0.25% weighted average
View Info

A Comprehensive Guide to Testing and Certification Requirements

NSF/ANSI 58, 42, 53 & 401

Material Safety

Ensure the product does not release harmful chemicals into the water.

Performance and Effectiveness

Check if the product effectively reduces certain contaminants.

Structural Integrity

Confirm that the product operates normally under varying water pressure conditions without malfunctioning, assess the system's long-term performance and reliability.

Manufacturing and Quality Control

Check the factory and quality control steps to make sure packaging and labels are correct and follow the rules.

A Comprehensive Guide to Testing and Certification Requirements

NSF/ANSI 58, 42, 53 & 401

Material Safety

Ensure the product does not release harmful chemicals into the water.

Performance and Effectiveness

Check if the product effectively reduces certain contaminants.

Structural Integrity

Confirm that the product operates normally under varying water pressure conditions without malfunctioning, assess the system's long-term performance and reliability.

Manufacturing and Quality Control

Check the factory and quality control steps to make sure packaging and labels are correct and follow the rules.

Discover Detailed Certification Information for Our Products

Reverse Osmosis System

Under Sink Filter

Countertop Filter

Whole House Filter

Outdoor Filter

Refrigerator Filter

Additional Certifications beyond NSF/ANSI Standard Certification

Beyond NSF, our products are also certified by CE, FCC, IAPMO, TUV, WRAS, etc.

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