Numhew 22 oz. Water Filter Pitcher
Skip this product until the brand discloses filter composition and pitcher polymer.
Numhew provides no public information about PFAS use in this pitcher or its replacement filters. Water filter pitchers often use activated carbon, but pitcher body material and any proprietary filter coatings remain undisclosed.
We flunk more products than we pass. This one earned its grade. How we grade
Material
Plastic pitcher with replaceable activated carbon filter
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
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What Numhew 22 oz. Water Filter Pitcher is made of, ingredients and materials
The Numhew pitcher is plastic housing (polymer type unspecified by brand) with a replaceable activated carbon cartridge. Activated carbon itself has no hazard of this kind on record, but the pitcher's plastic composition determines whether it can leach chemicals into filtered water, especially if exposed to heat or acidic water. Without disclosure, you cannot confirm whether the housing is polypropylene (lower concern, more stable) or a lower-grade plastic prone to degradation.
What’s concerning
No PFAS disclosure
No public statement from the brand about PFAS in this product.
Plastic leaching (unknown polymer)
Pitcher material is not disclosed; if it is recycled or low-grade polycarbonate, BPA or other bisphenols may leach into stored water over months. Polypropylene (lower concern) is standard but unconfirmed here.
Activated carbon cartridge contamination or saturation
Pitcher-style filters rely on user memory for replacement; overused cartridges harbor bacteria and algae, especially in warm environments. The brand provides no automated alerts or shipping reminders.
Housing degradation over time
Plastic pitchers crack, cloud, or leach microplastics after 1-2 years of daily use, particularly if filled with chlorinated or acidic tap water. No durability testing or warranty data from the brand is published.
Bacterial regrowth in filter housing
If pitcher sits unused for days or stored in warm kitchens, stagnant water in the cartridge chamber encourages microbial growth. Activated carbon does not sterilize; it only adsorbs contaminants.
PFAS
Activated carbon cartridges from some manufacturers have tested positive for PFAS carryover or use PFAS-coated filter media. The brand' silence prevents assessment of this hazard class, elevating category-wide risk.
Source, ATSDR ↗What’s reassuring
Base material not linked to PFAS
The main material recorded for this product is not one associated with PFAS.
The full breakdown
The brand's record and disclosure
The brand has not publicly disclosed the pitcher's polymer material, cartridge composition, or PFAS testing results for either component. No major recalls or safety controversies are on record for this model. The brand's silent stance on filter composition is a red flag in an industry where PFAS-laden activated carbon and non-compliant housing plastics have been documented in competing products.
How it compares in its category
Pitcher filters like this occupy the low-cost, low-maintenance segment. Compared to brands like Brita or PUR (which disclose BPA-free housing and publish cartridge testing), the Numhew offers no third-party certification or transparency. It performs standard mechanical filtration (chlorine, taste, odor reduction) but cannot remove all contaminants or confirm safety margins for long-term daily use.
If you buy it
Replace cartridges every 2-3 months or 40 gallons (whichever comes first) to prevent bacterial growth and carbon saturation. Do not fill with hot water or store near heat sources, as plastic degradation risk increases with temperature. Rinse the pitcher weekly and inspect for cloudiness, cracking, or discoloration, which signal polymer breakdown. Request polymer and filter composition from before purchase if possible.
What we don’t know
- Basis
- Model estimate, 45% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- 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.