Soma · Faucet Water Filters
Grove Collaborative Replacement Filters 2 Pack Soma Water Filter
Lower-concern water filter; no known PFAS risk, but brand offers no public PFAS statement.
Soma filter replacement cartridges use standard activated carbon and resin technology, which are intrinsically lower-risk materials for water filtration, not coated with Teflon-family coating or intentional PFAS.
Shop Soma on Amazon →Material
Activated carbon and ion-exchange resin filter media
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
Why this grade
No PFAS disclosure
No public statement about PFAS in this product.
Safe base material
Made from a material with no inherent PFAS use (ceramic, mineral, or natural fiber).
The full breakdown
What it's made of and why it matters
Soma replacement filters use activated carbon and ion-exchange resin to reduce chlorine, sediment, and certain dissolved contaminants. Activated carbon is inert when used in cold water filtration and does not leach into drinking water under normal operating conditions. Ion-exchange resin is also stable in this application and poses no documented leaching risk in faucet-filter format. The filter housing materials are not publicly detailed by Soma, but standard food-grade plastic housings in this category rarely introduce contaminants if replaced on schedule.
The brand's record and disclosure
Soma has not published specific safety data sheets or third-party certification results for these filters. The brand does not maintain a public PFAS statement despite selling water filters marketed for contaminant reduction. No product recalls related to filter media contamination or housing leaching have been documented for this product line. Soma markets sustainability and carbon footprint reduction but does not transparently address chemical safety testing or certification.
How it compares in its category
Soma filters are mid-range in price and performance within the faucet-filter segment. Competitors like Brita and PUR publish more detailed contaminant-reduction claims and third-party test results; Soma's transparency is weaker. Activated carbon and resin are standard, widely used media in consumer water filters and are not inherently riskier than alternatives. The key differentiator is maintenance discipline: Soma filters require replacement every 2 months to prevent bacterial biofilm growth, a risk common to all carbon filters if left in service too long.
If you buy it
Replace the filter every 2 months or sooner if water flow slows noticeably; stagnant carbon becomes a host for bacteria and mold. Store unopened filters in a cool, dry place away from direct sunlight to prevent resin degradation. Do not use with untreated water that visibly contains sediment or particles; pre-filter if necessary. Install per manufacturer instructions to ensure proper seal and avoid bypass around the filter media.
Beyond PFAS: other things we checked
Established hazard classes for this product type, assessed from public information. These never change the PFAS grade; a Likely flag caps the Verdict at “Buy with care.”
Bacterial biofilm growth in stagnant filter media
Activated carbon filters accumulate bacteria if not replaced on schedule (every 2 months). Extended use beyond recommended replacement interval creates conditions for microbial contamination, a well-documented issue in consumer carbon filters.
Housing material leachables (plastic)
Soma does not disclose housing material composition or testing results. Standard food-grade plastic housings in faucet filters do not leach under cold water use, but Soma provides no certifications to verify material grade.
Resin degradation and particle shedding
Ion-exchange resin is stable in cold water and does not shed particles during normal use. No documented cases of resin failure in Soma filters, but replacement intervals should be observed to prevent media breakdown.
Chlorine and sediment bypass if seal fails
Poor installation or misalignment of the filter cartridge can allow contaminants to pass around the media rather than through it. User error rather than product defect, but improper setup defeats the filter's purpose.
PFAS in filter media or housing (not separately graded)
Activated carbon and ion-exchange resin are not inherent PFAS sources. Soma does not disclose PFAS content or reduction performance; the brand's silence on PFAS testing is notable given growing consumer concern.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 72% confidence. It is not a lab result.
No independent PFAS lab test is on record for this exact product. A lab test could move the score in either direction.
The brand has not made a specific, verifiable PFAS-free statement, so part of this score reflects that missing disclosure rather than a confirmed material.
Formulations and coatings change between production runs. Always check the current label before buying.
Safer alternatives in Faucet Water Filters
Aquasana
Under Sink Water Filter 2-Stage Filtration Reduces up to 99.99% of Pfas
Activated carbon, ion exchange resin cartridges
Lower-concern filter type, but claim lacks third-party lab proof, verify independently before relying on it.
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Waterdrop
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✓Bare metal or glass, no coating at all
Waterdrop
Filtered Water Faucet
stainless steel faucet body; activated carbon/ion-exchange filter cartridge
Lower-concern choice; water filter design avoids high-risk PFAS applications, but brand transparency on materials could be stronger.
✓Bare metal or glass, no coating at all
More faucet water filters 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.