Personalized 26 oz. NAYAD
Lower PFAS concern for the bottle itself but check filter cartridge sourcing before buying.
Naya's personalized water bottle is typically BPA-free plastic, which carries lower inherent PFAS risk compared to nonstick or water-resistant coatings. The brand discloses nothing about PFAS testing or mitigation for the filter cartridge.
We flunk more products than we pass. This one earned its grade. How we grade
Material
BPA-free plastic bottle with carbon filter cartridge
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
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What Personalized 26 oz. NAYAD is made of, ingredients and materials
The Naya 26 oz bottle uses BPA-free plastic (typically polypropylene or tritan copolyester) for the main container, which avoids the endocrine-disrupting risks associated with BPA. The carbon filter cartridge is the higher-risk component, activated carbon effectively removes chlorine and some contaminants, but its housing material and whether it contains any binder resins or synthetic media are not fully disclosed by the brand. Repeated hot-water exposure can cause plastic degradation and accelerate leaching of any residual monomers from the plastic base.
What’s concerning
No PFAS disclosure
No public statement from the brand about PFAS in this product.
Plastic leaching (monomers and additives)
BPA-free plastics like polypropylene and tritan can still leach residual oligomers or stabilizer additives (e.g., antimony compounds) when exposed to heat, alcohol, or acidic beverages; room-temperature water use minimizes this risk significantly.
Carbon filter cartridge housing material
The filter cartridge casing and any binder resins are not publicly disclosed; if synthetic media or epoxy-based housings are used, they may leach trace compounds into water, especially as the filter ages or if replaced infrequently.
Bacterial and mold growth in filter
Carbon filters can harbor bacteria and mold if not rinsed regularly or if moisture is left standing in the cartridge; this is a known issue across the filtered bottle category and requires weekly cleaning to mitigate.
Filter replacement compliance and tracking
Naya does not provide clear visual indicators or app-based reminders for filter changes; users may over-extend cartridge life, reducing filtration efficacy and increasing biofilm risk without realizing it.
What’s reassuring
Base material not linked to PFAS
The main material recorded for this product is not one associated with PFAS.
Microplastics
No specific data on microplastic shedding from Naya bottles in normal use; however, repeated drops, high heat exposure, or prolonged UV exposure could theoretically cause micro-fractures that shed particles.
Source, EPA ↗The full breakdown
The brand's record and disclosure
Naya (owned by PepsiCo) does not publicly disclose detailed material sourcing, filter cartridge composition, or third-party safety testing results for this specific product. The brand makes no published statements on PFAS reduction or testing, which is notable given that carbon filters can sometimes be coated with PFOA-containing non-stick agents in manufacturing. No major recalls or safety controversies are on record for this product line, but the lack of transparency limits independent verification of manufacturing standards.
How it compares in its category
Filtered water bottles vary widely in filter technology and plastic safety. Naya's BPA-free designation meets the baseline standard, but competitors like Brita, LifeStraw, and S'well provide more detailed material certifications (NSF, FDA compliance statements) and filter replacement guidance. Many premium brands in this category offer replaceable cartridges with clearer sourcing; Naya's ecosystem is less transparent, making it harder to audit long-term safety.
If you buy it
Do not fill with hot or near-boiling water; stick to cold or room-temperature filtered tap water to avoid accelerating plastic leaching. Replace the carbon filter cartridge every 2-3 months or according to the manufacturer's guidance, and rinse the bottle with warm (not hot) soapy water weekly to prevent bacterial biofilm growth inside the filter. Store away from direct sunlight and heat sources, as both degrade plastic over time. If you notice any plastic smell, cloudiness in the bottle, or a change in water taste, discontinue use and replace the bottle.
What we don’t know
- Basis
- Model estimate, 72% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Naya has made none
Formulations change between production runs, so check the current label. How we grade.
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How we score, every product runs through the same public 0-100 rubric based on materials, coatings, brand disclosure, lab findings, and recalls. See the full methodology → Spotted a mistake? Report an error.