Drip · Faucet Water Filters
PUR Maxion Faucet Water Filter PFM150W
Lower-concern faucet filter, but no public PFAS disclosure from brand, typical for the category.
PUR's Maxion faucet filters use activated carbon and ion-exchange resin, both standard materials with lower inherent PFAS risk compared to treated fabrics or nonstick coatings. PUR makes no public PFAS claims for this product. No third-party lab data or certifications are publicly available for this specific model.
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Activated carbon filter cartridge
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
The PUR Maxion PFM150W uses activated carbon as its primary filtration medium, a well-established material for reducing chlorine taste, odor, and some organic contaminants. The cartridge housing is typically polypropylene or similar food-grade plastic. Activated carbon itself is inert and does not leach harmful substances under normal drinking water conditions; the main performance variable is how thoroughly the carbon is manufactured and how quickly it becomes saturated. This design avoids Teflon-type coating (Teflon) and ceramic coatings that present fume risks in other filter types.
The brand's record and disclosure
PUR is owned by Helen of Troy and has a long track record in water filtration but does not publicly disclose PFAS removal testing results for the Maxion line, which is typical across the faucet filter category. The brand has not faced major recalls or safety controversies specific to this product model. PUR holds NSF certification for some products but certification specifics for the PFM150W should be verified on packaging or the brand website, as claims vary by model.
How it compares in its category
Faucet filters like this one are entry-level, lower-cost solutions compared to pitcher filters or under-sink systems; they offer convenience but typically filter less water volume and may miss some emerging contaminants like PFAS at high removal rates. The Maxion is positioned as a mid-tier faucet option, offering filter life of around 100 gallons (roughly 2-3 months) versus some competitors claiming up to 200 gallons. Activated carbon is the standard across most faucet filters, so material risk is consistent with the category.
If you buy it
Replace cartridges on schedule or when flow slows noticeably; carbon filters do not improve with age and can harbor bacterial growth if left beyond recommended use. Store replacement cartridges in a cool, dry place to preserve carbon function. Do not attempt to reuse or clean cartridges; once saturated, they lose effectiveness. Monitor water taste and odor as a practical indicator of cartridge exhaustion, since filter life depends on local water quality and usage.
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 growth in filter cartridge
Activated carbon provides a porous medium where bacteria can colonize if cartridges are not replaced on schedule or if the filter sits unused for extended periods. This is a maintenance issue, not a manufacturing defect, but undisclosed or overdue cartridges can degrade water safety.
Polypropylene housing leachables
Food-grade polypropylene used in the filter housing does not typically leach BPA or phthalates at room temperature drinking water conditions. No recalls or reports of leaching from PUR faucet filter housings are on public record.
Filter cartridge saturation and reduced efficacy
User reports and product reviews document that filters lose effectiveness before the stated 100-gallon life if water quality is poor or chlorine levels are high, leading to false confidence in contamination reduction. This is a performance rather than toxicity hazard but affects safety outcomes.
Teflon-type coating or coating-related fume risk
The PFM150W does not use Teflon-type coating-based coatings or ceramic glazes, so there is no risk of fume generation during normal use or cartridge handling.
Lead or heavy metal leaching from filter media
Activated carbon itself does not leach lead, cadmium, or other heavy metals into water under normal pH and temperature conditions. No testing records or recalls document this hazard for PUR Maxion products.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 62% 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.
✓Brand claims PFAS-free (unverified)
Waterdrop
Sink Filter
activated carbon filter media, stainless steel housing
Lower-concern filter type, but brand makes no PFAS transparency claim, verify cartridge materials directly before purchase.
✓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.