Does Soma water filters have PFAS?
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.
We graded 8 Soma water filters products, averaging Excellent (97/100). 8 of them grade Good or better. Against the other 27 water filters brands we grade, where the middle brand sits at 95/100, Soma is better than typical, scoring above 65% of them.
Soma water filters worth buying Good or better, safest first
Soma
Pitcher
BPA-free plastic pitcher with activated carbon filter
Bacterial growth and microbial contamination
Pitcher-style filters create a standing-water environment; if filters are not changed on…
Activated carbon filter exhaustion and ineffective filtration
Soma filters have a finite lifespan; failure to replace them allows contaminants…
Plastic degradation and leaching from physical damage
The BPA-free plastic housing is durable under normal cold-water use, but cracks…
Water quality claims accuracy and testing
Soma does not independently certify filtration efficacy through NSF or WQA standards, so…
Lower concern; brand claims PFAS-free, though no third-party lab verification.
✓Brand claims PFAS-free (unverified)
Soma
Sustainable Pitcher
borosilicate glass pitcher, activated carbon filter cartridge
Bacterial growth in filter housing
Activated carbon pitchers can harbor biofilm if cartridges are not replaced on schedule…
Activated carbon dust in water
New filter cartridges may shed fine carbon particles initially. Pre-rinsing the cartridge…
Rubber seal degradation
Gaskets and seals around the filter housing can degrade over 1-2 years of regular use…
Lower-concern water filter; glass and carbon unlikely to contain PFAS.
✓Bare metal or glass, no coating at all
Soma
Full Circle Home 3-Piece Soma Water Pitcher Set
Glass pitcher body; plastic/resin components (unspecified polymer)
Unspecified plastic/resin leachables from filter housing and cartridge
The filter cartridge and pitcher lid contain plastics whose polymer type and chemical…
Bacterial growth in filter housing if maintenance is poor
Any reusable pitcher filter is prone to biofilm formation and bacterial colonization in…
Filter medium particulate shedding
Activated carbon and ion-exchange resin can shed fine particles, especially as the filter…
Low PFAS risk for the glass vessel, but plastic filter parts lack specification.
✓Bare metal or glass, no coating at all
Soma
10 Cup Water Pitcher
BPA-free plastic pitcher with replaceable carbon filter cartridge
Bacterial or mold growth in pitcher housing
Like all gravity-fed pitchers, the reservoir can develop biofilm if not regularly rinsed…
Carbon filter media breakdown and particle release
Activated carbon cartridges can shed fine particles or degrade if overfilled…
Filter cartridge housing and sealing material degradation
Cartridge seals (typically rubber or silicone) can wear, crack, or allow bypass if…
Lower concern; standard pitcher design lacks known PFAS-prone features.
⚠Brand says nothing about PFAS
Soma
Water Pitcher Filter 10-Cup - White - Case of 2 - 80 oz
Plastic pitcher body with replaceable activated carbon filter cartridge
Bacterial growth in filter cartridge
If filter is not replaced on schedule or pitcher is left standing in warm conditions…
Filter cartridge binder degradation
Activated carbon cartridges are bound with polymer resins or cellulose. Over time or if…
Housing mold or biofilm on interior walls
Any water pitcher can develop mold or bacterial biofilm on interior surfaces if not…
Lower concern than cookware; standard carbon filters carry minimal PFAS risk.
⚠Brand says nothing about PFAS
Soma
Sustainable Pitcher & Plant-Based Water Filter
BPA-free plastic pitcher; activated carbon and plant-based filter media
Bacterial growth in filter media if unmaintained
Activated carbon filters are prone to biofilm formation if left wet between uses or if…
Mold or algae growth in pitcher body
Pitcher design includes small crevices and the filter housing that can harbor mold if not…
Contaminant removal efficacy claims without third-party verification
Soma claims removal of chlorine, taste, and odor, but does not publish NSF/ANSI…
Low PFAS risk with standard pitcher and filter design, though no independent verification exists.
⚠Brand says nothing about PFAS
Soma
Water Pitchr Filter
Plastic pitcher body; replaceable activated carbon/ion-exchange filter cartridge
Bacterial growth and biofilm in stagnant filter media
If filter cartridge is not replaced on schedule, water sitting in the activated carbon…
Activated carbon dust or fines in initial filtered water
New filter cartridges occasionally shed fine carbon particles into the first few pitches…
Filter cartridge housing failure or seal degradation
Repeated insertion and removal of cartridges can loosen the plastic threads or O-ring…
Low PFAS risk from standard filter materials, but brand offers no composition transparency.
⚠Brand says nothing about PFAS
Soma
10-Cup Water Filter Pitcher
BPA-free plastic pitcher, carbon/ion-exchange filter cartridge
Bacterial/microbial growth in filter if unmaintained
Activated carbon can harbor bacteria if not replaced on schedule; Soma's pitcher lacks…
Filter cartridge quality and filter media purity
Activated carbon sourcing and testing standards are not disclosed by Soma; cartridge…
Housing gasket/seal degradation
Plastic seals and gaskets can harden or degrade after 1-2 years of repeated filling and…
Low PFAS risk with typical filter design and no known contamination reports.
⚠Brand says nothing about PFAS
Better water filters from other brands
Graded higher than the Soma average of 97.
ZeroWater
Culligan 12-Cup Water Filter Pitcher with ZeroWater Technology
Activated carbon and ion-exchange resin filter media
Bacterial growth in reservoir if filter unmaintained or water stored too long
Limited concern
Filter cartridge degradation and particle escape if overfilled or misseated
Limited concern
Ion-exchange resin saturation without visible warning
Moderate concern
Lower concern; filters are designed to remove PFAS, not introduce them.
✓Naturally PFAS-free material
ZeroWater
22 Cup Ready Read Water Filtration Dispenser
Ion-exchange resin cartridge, plastic dispenser housing
Bacterial growth in filter housing
Limited concern
Ion-exchange resin particle shedding into water
Limited concern
Mineral scale buildup and mold on external surfaces
Limited concern
Cartridge disposal and resin environmental burden
Moderate concern
Lower concern. PFAS-free claim backed by standard certifications.
✓Verified PFAS-free by a third party
Generic
Reverse Osmosis System (generic)
Bacterial growth in storage tank and tubing
High concern
BPA & bisphenols
Limited concern
Semipermeable membrane integrity failure
Moderate concern
Chlorine damage to membrane and pre-filters
Limited concern
Low PFAS risk from the filter mechanism itself.
✓Lab test found no PFAS
See every Soma product we grade on the Soma brand page, or the full water filters ranking.