Nalgene · Portable Water Bottles
Epic Water Filters Nalgene OG Tom Asta Special Edition
Water filter cartridges present lower PFAS concern than apparel coatings.
Carbon or ion-exchange filter media are not recognized PFAS sources. The brand makes no PFAS statements, and no third-party testing is available.
We flunk more products than we pass. This one earned its grade. How we grade
Material
Polypropylene or polyethylene (filter cartridge); BPA-free plastic body
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
What Epic Water Filters Nalgene OG Tom Asta is made of, ingredients and materials
This product uses polypropylene or polyethylene for the filter cartridge housing and body, both inert thermoplastics with low leaching potential under normal cold-water conditions. Nalgene explicitly markets it as BPA-free, eliminating the endocrine-disruptor concern that haunted earlier plastic bottles. The filter media itself (typically activated carbon and/or ion-exchange resin) does not pose established chemical migration hazards when used as designed for potable water.
What’s concerning
Category baseline
The starting point for this type of product, before anything specific to this product is counted.
No PFAS disclosure
No public statement from the brand about PFAS in this product.
Bacterial growth and biofilm in filter media
Activated carbon cartridges can harbor pathogenic bacteria (Legionella, E. coli) if left unused for weeks or not replaced on schedule. This is a usage failure, not a material defect, but remains the highest real-world risk for water-filter products.
Polypropylene particle shedding if damaged or heated
Cracked or warped cartridge housings from impact or thermal stress may release microplastic fragments into filtered water. Normal use avoids this, but mishandling or storage in hot conditions increases likelihood.
Carbon dust inhalation during installation
Loose activated carbon particles may escape during first cartridge insertion or removal, particularly if handled roughly. This is a nuisance inhalant, not toxic, but a real operational consideration.
What’s reassuring
Base material not linked to PFAS
The main material recorded for this product is not one associated with PFAS.
Leachables from filter housing sealants or adhesives
No public test data or recalls document chemical migration from cartridge seals or glues in Nalgene filters. NSF certification requires testing for this, but results are not independently published.
BPA & bisphenols
Manufacturer claims BPA-free status; no independent verification of BPS or other bisphenol substitutes is available, but this is consistent with industry practice for drinking-water products.
Source, FDA ↗The full breakdown
The brand's record and disclosure
Nalgene has published BPA-free commitments and undergoes third-party testing for drinking-water safety compliance (NSF/ANSI standards). The brand does not publicly disclose PFAS testing of filter cartridges, which is standard industry silence on this emerging issue. No recalls specific to this product line for leaching or contamination are on record in FDA or CPSC databases.
How it compares in its category
Nalgene water filters occupy the mid-market tier, meeting baseline safety standards but offering no independent certifications beyond NSF marking. Competitor brands like LifeStraw and Sawyer provide equivalent or more transparent testing disclosures. This product's risk profile is typical for replacement-cartridge filters, primary hazard is maintenance neglect, not material chemistry.
If you buy it
Replace the cartridge every 2-3 months or per manufacturer guidance; stagnant filters breed bacterial biofilm regardless of plastic safety. Store unused cartridges dry and sealed to prevent mold colonization. Do not expose to water hotter than 60°C (140°F), as polypropylene can soften and shed particles under heat. Clean the housing with mild soap and air-dry between refills.
What we don’t know
- Basis
- Model estimate, 68% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Nalgene has made none
Formulations change between production runs, so check the current label. How we grade.
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More portable water bottles grades
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.