Do 3M water filters have PFAS?
3M water filters average 95 out of 100 on PFAS Authority's PFAS and toxin screen across the 4 3M water filters graded as of October 2026, level with the 95 out of 100 median for the 64 other water filters brands graded alongside it.
3M water filters average Excellent on our four-band scale. 4 of the 4 we graded are worth buying. That is above 36% of the water filters brands we grade.
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.
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Top-graded picks in the categories readers replace first, every one scored on the same rubric.
- polypropylene filter housing, carbon/sediment cartridge
- We found no PFAS statement from the brand
- Bacterial growth in spent cartridges
3 hazards checked on this product, all on its full breakdown.
Aquasure
Premier Series 75 GPD Under Sink Reverse Osmosis Water Filtration System
- RO membrane, carbon filters, stainless steel housing
- We found no PFAS statement from the brand
- Bacterial and microbial growth in housing and filters
4 hazards checked on this product, all on its full breakdown.
Avocado
Vegan Mattress
- organic cotton, natural latex, coconut coir, recycled steel coils
- The brand calls it PFAS-free, which we have not verified
- Heavy metals
2 hazards checked on this product, all on its full breakdown.
3M water filters worth buying Good or better, best-graded first
- activated carbon filter media
- We found no PFAS statement from the brand
- Bacterial growth and biofilm in filter media. If cartridge replacement is delayed or filter sits idle for…
3 hazards checked on this product, all on its full breakdown.
- Activated carbon and ion exchange resin filters
- We found no PFAS statement from the brand
- Bacterial growth if cartridge is not replaced on schedule. Activated carbon filters can support microbial…
3 hazards checked on this product, all on its full breakdown.
- Activated carbon and ion exchange filter media
- We found no PFAS statement from the brand
- Bacterial growth in filter media (if unmaintained). All activated carbon pitcher filters can develop…
2 hazards checked on this product, all on its full breakdown.
- Plastic pitcher, activated carbon filter media
- We found no PFAS statement from the brand
- Activated carbon filter degradation and bacterial growth. Spent activated carbon can accumulate biofilm and…
4 hazards checked on this product, all on its full breakdown.
Better water filters from other brands
Graded higher than the 3M average of 95.
- glass bottles, sodium dichloroisocyanurate treatment chemical
- We found no PFAS statement from the brand
- Chemical overdose or misuse
5 hazards checked on this product, all on its full breakdown.
- Stainless steel housing and spigot
- We found no PFAS statement from the brand
- Bacterial growth and biofilm if filters not replaced
5 hazards checked on this product, all on its full breakdown.
- Borosilicate glass pitcher, replaceable activated-carbon filter cartridge
- Bacterial growth in filter cartridge if unmaintained
5 hazards checked on this product, all on its full breakdown.
The same question, asked of the other water filters brands
Best average grade first. 3M averages 95.
See every 3M product we grade on the 3M brand page, or the full water filters ranking.