NSF compliance standards 42, 53, 61 and 372

The Science

Independent research, third-party testing and product documentation in one place.

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CWCA products are third-party tested and in compliance with NSF 42, 53, 61 and 372 - product dependent as noted.CWCA products are third-party tested and in compliance with NSF 42, 53, 61 and 372 - product dependent as noted.

General Science

Molecular hydrogen and hydrogen-rich water

Hydrogen-rich water research examines dissolved molecular hydrogen (H2), antioxidant activity, oxidative stress and possible effects on health. Product output may also be described by its negative oxidation-reduction potential (ORP). These research papers are provided for education and do not replace medical advice.

H₂Three measurements help describe hydrogen-rich water.

H₂Dissolved molecular hydrogen

ORPOxidation-reduction potential

pHAcidity or alkalinity

Hydrogen-rich waterMarch 31, 2026 Molecular hydrogen water and health benefitsMarch 21, 2026 The Medical Uses of HydrogenResearch PDF Hydrogen for relief of oxidative stress and diseaseJanuary 22, 2025 Role of molecular hydrogen in obesity treatmentResearch PDF Hydrogen therapy and fatty liver diseaseDecember 28, 2025 Hydrogen as a Therapeutic AntioxidantResearch PDF Hydrogen and Natural GLP-1Research PDF Hydrogen Therapy and Musculoskeletal MedicineResearch PDF A Doctor's OpinionPDF Small Molecule, Big ImpactReformatted hydrogen overview Water Product ComparisonComparison sheet The Water ChallengeTry it at home

NSF standards 42, 53, 61 and 372 — NSF standards address different aspects of drinking-water treatment, materials and lead content. Applicable standards vary by product.

CleanWaterCleanAir Science

Testing, compliance and system documents

Products are tested and documented individually. A standard does not mean that every product reduces every contaminant; applicable claims depend on the product and its testing.

NSF/ANSI 42

Addresses aesthetic effects such as chlorine taste and odor, chloramine, particulates and other product-specific non-health claims. It also evaluates material safety and structural integrity.

NSF/ANSI 53

Addresses product-specific health-effect reduction claims, which may include lead, mercury, cysts, certain VOCs, PFAS compounds or disinfection byproducts when individually tested.

NSF/ANSI/CAN 61

Evaluates what a drinking-water component may leach into the water. It is a material-safety standard, not a contaminant-removal claim.

NSF/ANSI/CAN 372

Verifies that wetted product components meet the weighted-average lead-content requirement. It does not test a filter's lead-removal performance.

CleanWater Quick OverviewOctober 10, 2026 How Does It Work?October 10, 2026 Whole Home Unit vs. PackageRead the comparison on site Industrial / Municipal SystemsOctober 10, 2026 Data Center / Closed-Loop SystemOctober 1, 2026 Your Savings, Science and WellnessSeptember 26, 2026 NSF compliance checklistTesting documentation EPA PFAS ExplainedPDF EPA proposed UCMR 6WaterWorld PDF

Vollara Science - Water

LivingWater and pH

LivingWater documentation covers dissolved hydrogen, pH selection and household uses. Hydrogen-rich water is described by dissolved H2 and measurable ORP; results depend on source water and operating conditions.

Vollara LivingWater system — LivingWater system shown for product context. Use the documents below for features, operating guidance and research.

LivingWater Features and BenefitsProduct PDF Effects of DDI TechnologyProduct PDF pH and Chlorine ChartsProduct PDF LivingWater Uses by pHUpdated October 14 guide The Water ChallengeCompare water at home

Vollara Air and Surface Pro air purifier — Air & Surface Pro shown for product context. The research and testing below document the technology and its evaluated uses.

Vollara Science - Air

CleanAir and ActivePure documentation

Review peer-reviewed research, third-party test results and indoor-air guidance. ActivePure is complementary technology and does not replace public-health guidance.

Air Science SummaryResearch overview SARS-CoV-2 and other infectious agentsFDA documentation 2025 FDA Air and Surface documentationFDA documentation Philadelphia schools installationSchool deployment American Journal of Infection Control studyPeer reviewed Reduction of airborne contaminantsUniversity of Cincinnati testing charts Inactivation of L. pneumophilaTest results EPA indoor-air guidance for schoolsEPA MS2 bacteriophage RNA virus and airborne contaminantsNew air science Flu reduction and sick daysScientific proof charts H1N1 and microbial reductionScientific proof charts Hotel room before-and-after testingScientific proof charts Medical and residential before-and-after testingScientific proof charts East Aurora, Illinois superintendent letterClean replacement copy Space Foundation letterActivePure recognition Vollara Air FAQProduct and technology questions