Waterdrop Review, Is Waterdrop Non-Toxic?
Waterdrop averages 95 out of 100 on PFAS Authority's PFAS and toxin screen across the 34 Waterdrop products graded as of October 2026, and 33 of them reach its 70 point pass mark.
Waterdrop grades Excellent on our four-band scale.
PFAS Authority is a scoring system, not a laboratory. We do not test products ourselves. Grades are model-based, built from published ingredients, materials, certifications, brand disclosures and third-party lab results where they exist. See the rubric.
What Waterdrop says and does about PFAS
We found no PFAS statement from Waterdrop about the materials in its own filters. Waterdrop says some of its reverse osmosis systems reduce PFOS and PFOA in tap water, which is a claim about filtering and not about what the products are made of. We found no lab test or lawsuit naming Waterdrop for PFAS.
- Brand statementWaterdrop says its G3P800 reverse osmosis system reduces 99 percent of PFOS and PFOA. This is a claim about water treatment and not about the product materials. Waterdrop, PFAS in tap water page ↗
- Medical referenceWaterdrop's own NSF page describes NSF/ANSI 372 as a lead-free standard. Waterdrop, NSF certified info ↗
- Brand statementWaterdrop announced a PFAS Protection Initiative in February 2026 focused on household education and water solutions. PR Newswire, Waterdrop Filter ↗
Sources checked September 30, 2026. A brand statement is the company’s own claim, which we report but have not verified. Our grades are model-based estimates, not lab tests.
Waterdrop is one of the brands we researched by hand for our record of what every brand has published about PFAS, where the same question is answered for each of them in one line.
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Top-graded picks in the categories readers replace first, every one scored on the same rubric.
- polypropylene filter housing, carbon/sediment cartridge
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- Bacterial growth in spent cartridges
3 hazards checked on this product, all on its full breakdown.
Aquasure
Premier Series 75 GPD Under Sink Reverse Osmosis Water Filtration System
- RO membrane, carbon filters, stainless steel housing
- We found no PFAS statement from the brand
- Bacterial and microbial growth in housing and filters
4 hazards checked on this product, all on its full breakdown.
Avocado
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- organic cotton, natural latex, coconut coir, recycled steel coils
- The brand calls it PFAS-free, which we have not verified
- Heavy metals
2 hazards checked on this product, all on its full breakdown.
Does Waterdrop have PFAS, by category
Which Waterdrop products are PFAS-free? Good or better, best-graded first
Waterdrop
Limited Edition Fusion Glass · Durable Borosilicate Glass Bottle Glass
- Borosilicate glass, no coating disclosed
- Thermal shock fracture (physical hazard). Borosilicate is thermally resistant but not immune to extreme…
- Stainless steel double-wall, bare metal construction
- Seal degradation and bacterial growth. Double-wall bottles rely on a rubber or silicone gasket seal. If the…
2 hazards checked on this product, all on its full breakdown.
- borosilicate glass, no stated coating
- Thermal shock and breakage. Borosilicate resists thermal stress better than standard glass, but rapid…
2 hazards checked on this product, all on its full breakdown.
- borosilicate glass, stainless steel cap
- Stainless steel cap corrosion and nickel leaching. Stainless steel caps contain nickel and chromium; under…
3 hazards checked on this product, all on its full breakdown.
- Borosilicate glass pitcher, activated carbon + ion-exchange filter media
- Bacterial growth in unmaintained filter media. If cartridges are not replaced on schedule or the pitcher sits…
3 hazards checked on this product, all on its full breakdown.
- Activated carbon filter cartridge; filter housing (likely polypropylene or stainless steel)
- Bacterial growth and biofilm in filter media. Activated carbon, if not replaced regularly or if exposed to…
4 hazards checked on this product, all on its full breakdown.
- stainless steel faucet body; activated carbon/ion-exchange filter cartridge
- Bacterial growth in filter cartridge. Activated carbon can harbor bacteria if cartridges are not replaced on…
2 hazards checked on this product, all on its full breakdown.
- activated carbon filter media, stainless steel housing
- Bacterial growth in filter cartridge. If cartridge is not replaced on schedule or if gaps exist between…
3 hazards checked on this product, all on its full breakdown.
- BPA-free plastic pitcher, carbon/ion-exchange filter media
- Plastic pitcher coating degradation and leaching. If the pitcher interior is coated with epoxy or polyester…
4 hazards checked on this product, all on its full breakdown.
- Plastic pitcher (likely polypropylene or BPA-free plastic); activated carbon filter
- Bacterial growth and biofilm in filter cartridge. If filter cartridges are not replaced on schedule or if the…
3 hazards checked on this product, all on its full breakdown.
- activated carbon, ion-exchange resin cartridge
- Bacterial growth in filter housing. Moist carbon and resin provide organic substrate for microbe colonization…
4 hazards checked on this product, all on its full breakdown.
- Carbon and ion-exchange resin filter media
- Bacterial colonization if filter not replaced on schedule. Saturated carbon and resin media can support…
3 hazards checked on this product, all on its full breakdown.
Waterdrop
Restored Waterdrop G2 Tankless Reverse Osmosis System 7-Stage Under Sink water Filter
- Activated carbon, reverse osmosis membrane, polypropylene housing
- Bacterial growth in storage tank. All under-sink RO systems with storage tanks risk biofilm formation if…
3 hazards checked on this product, all on its full breakdown.
- polypropylene pitcher body, activated carbon filter cartridge
- Polypropylene degradation over time. Polypropylene pitchers can become brittle and may develop micro-cracks…
4 hazards checked on this product, all on its full breakdown.
Waterdrop
200-Gallon Long-Life Countertop NSF Certified Water Filter Pitcher
- Activated carbon filter, plastic pitcher housing
- Bacterial growth in stagnant filtered water. Pitcher filters do not sterilize water; if filtered water sits…
3 hazards checked on this product, all on its full breakdown.
- BPA-free plastic pitcher, activated carbon + ion-exchange resin filter cartridges
- Bacterial growth in filter cartridge. Activated carbon and resin beds, if not replaced regularly or if the…
4 hazards checked on this product, all on its full breakdown.
- Activated carbon, polypropylene housing
- Bacterial growth in exhausted cartridge. If cartridge is not replaced on schedule, stagnant water and…
3 hazards checked on this product, all on its full breakdown.
- Activated carbon filter media, plastic housing (likely polypropylene or polyamide)
- Bacterial growth in filter housing. Standing water in the filter chamber between uses or if cartridge is…
3 hazards checked on this product, all on its full breakdown.
- Ceramic cartridge filter, stainless steel housing
- Bacterial colonization in filter cartridge. Ceramic cartridges can develop biofilm if not replaced on…
2 hazards checked on this product, all on its full breakdown.
- Plastic pitcher, replaceable carbon/ion-exchange filters
- Plastic housing leachables (polypropylene/plastic resin). Food-grade plastic pitchers may leach trace amounts…
5 hazards checked on this product, all on its full breakdown.
- Borosilicate glass, stainless steel, silicone gasket
- Silicone gasket degradation and bacterial growth. Silicone gaskets in reusable bottles can accumulate…
2 hazards checked on this product, all on its full breakdown.
- Borosilicate glass bottle with stainless steel cap
- Borosilicate glass breakage and sharp fragments. While borosilicate is durable, it can shatter if dropped or…
2 hazards checked on this product, all on its full breakdown.
- Plastic pitcher with activated carbon/ion-exchange filter cartridge
- Bacterial growth in filter cartridge. All pitcher filters carry this risk if cartridges are not replaced…
2 hazards checked on this product, all on its full breakdown.
- Polypropylene pitcher body, activated carbon/ion-exchange filter cartridge
- Bacterial growth and biofilm in filter or pitcher. Any water pitcher filter can accumulate bacteria or mold…
3 hazards checked on this product, all on its full breakdown.
- Activated carbon filter media, plastic pitcher body
- Bacterial growth in filter media if maintenance neglected. Activated carbon cartridges create favorable…
4 hazards checked on this product, all on its full breakdown.
- Plastic pitcher housing + activated carbon/ion-exchange filter media
- Microplastics. Activated carbon used in filter cartridges can release fine particles if not pre-rinsed or if…
3 hazards checked on this product, all on its full breakdown.
- Plastic pitcher with replaceable activated carbon/ion-exchange filter cartridges
- Bacterial growth in filter cartridge housing. If cartridges are not replaced on schedule or if the pitcher…
3 hazards checked on this product, all on its full breakdown.
- Activated carbon filter cartridge, plastic housing
- BPA & bisphenols. Waterdrop does not specify plastic grade or bisphenol-free certification. Food-contact…
5 hazards checked on this product, all on its full breakdown.
- Activated carbon filter media; plastic housing
- Bacterial biofilm growth in filter media. Activated carbon filters that are not replaced on schedule can…
3 hazards checked on this product, all on its full breakdown.
- RO membrane, carbon filters, plastic housing
- Bacterial growth in storage tank or tubing, RO systems include a holding tank that can develop biofilm if not…
4 hazards checked on this product, all on its full breakdown.
- Reverse osmosis membrane, activated carbon, plastic housing (unspecified resin)
- BPA & bisphenols. Housing resin type is not disclosed by Waterdrop; if polycarbonate or recycled plastic is…
4 hazards checked on this product, all on its full breakdown.
- Plastic pitcher with activated carbon/ion-exchange filter cartridge
- Bacterial growth in filter housing if unmaintained. Activated carbon filters and plastic housings can harbor…
3 hazards checked on this product, all on its full breakdown.
- Plastic pitcher body, activated carbon filter cartridge
- Bacterial growth in filter cartridge if unmaintained. Activated-carbon filters create a moist, nutrient-poor…
4 hazards checked on this product, all on its full breakdown.
Which Waterdrop products contain PFAS? Poor and Bad, we’d swap these
- silicone or plastic lid with unknown coatings
- Coating leachables (unknown identity). Silicone and plastic lids commonly carry non-stick, waterproofing, or…
5 hazards checked on this product, all on its full breakdown.
Find an alternative on AmazonWhat to buy instead Good or better, in the categories Waterdrop sells
- glass bottles, sodium dichloroisocyanurate treatment chemical
- We found no PFAS statement from the brand
- Chemical overdose or misuse
5 hazards checked on this product, all on its full breakdown.
- Stainless steel housing and spigot
- We found no PFAS statement from the brand
- Bacterial growth and biofilm if filters not replaced
5 hazards checked on this product, all on its full breakdown.
- Borosilicate glass pitcher, replaceable activated-carbon filter cartridge
- Bacterial growth in filter cartridge if unmaintained
5 hazards checked on this product, all on its full breakdown.
Waterdrop and PFAS, common questions
- Does Waterdrop have PFAS?
- Waterdrop averages 95 out of 100 on PFAS Authority's PFAS and toxin screen across the 34 Waterdrop products graded as of October 2026, and 33 of them reach its 70 point pass mark. Grades are model-based estimates built from published materials, ingredients and disclosures, not lab tests. Does Waterdrop have PFAS? We found no PFAS statement from Waterdrop about the materials in its own filters. Waterdrop says some systems reduce PFOS and PFOA in drinking water, and that is a claim about filtering. Its own NSF page describes NSF/ANSI 372 as lead-free compliance, not a PFAS test.
- Is Waterdrop non-toxic?
- waterdrop Limited Edition Fusion Glass · Durable Borosilicate Glass Bottle Glass is the highest-graded Waterdrop product we have scored, at 100/100. It depends on the product line rather than the brand, so check the grade of the exact item you are buying.
- Which Waterdrop products are lower concern for PFAS?
- The highest-graded Waterdrop products we have scored are waterdrop Limited Edition Fusion Glass · Durable Borosilicate Glass Bottle Glass, Waterdrop Thermo Steel Double-Walled Stainless Steel Bottle matte, waterdrop Edition Glass Bottle. That is our model-based estimate from materials and public disclosure, not a lab test.
- Which Waterdrop products should I avoid?
- The lowest-graded Waterdrop products we have scored are Waterdrop Edition · All-Purpose Thermo · Tumbler Lid. Each one links to the evidence behind its grade.
Every grade uses the same public rubric. How grades work →