Does Waterpik dental floss have PFAS?
Waterpik dental floss averages 75 out of 100 on PFAS Authority's PFAS and toxin screen across the 5 Waterpik dental floss products graded as of October 2026, level with the 75 out of 100 median for the 21 other dental floss brands graded alongside it.
Waterpik dental floss averages Excellent on our four-band scale. 5 of the 5 we graded are worth buying. That is above 48% of the dental floss 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.
Waterpik dental floss worth buying Good or better, best-graded first
- ABS plastic, stainless steel, rubber seals
- We found no PFAS statement from the brand
- Bacterial growth in water reservoir. Any standing water system risks biofilm and bacterial colonization if…
2 hazards checked on this product, all on its full breakdown.
- Plastic housing, ABS/nylon components, stainless steel tip, silicone seals
- We found no PFAS statement from the brand
- Silicone seal breakdown and leaching. Silicone seals can stiffen and lose elasticity over 2-3 years of…
3 hazards checked on this product, all on its full breakdown.
- Plastic (ABS/acrylic), stainless steel, rubber seals
- We found no PFAS statement from the brand
- Bacterial growth in water reservoir and seals. Rubber seals and the sealed water chamber can support…
2 hazards checked on this product, all on its full breakdown.
- Plastic reservoir, motor, nozzle tips; standard polymer components
- We found no PFAS statement from the brand
- Bacterial and biofilm growth in reservoir and tubing. Water left standing in the plastic reservoir creates a…
3 hazards checked on this product, all on its full breakdown.
- plastic reservoir, electric motor, metal pump components
- We found no PFAS statement from the brand
- Bacterial growth in stagnant reservoir water. Plastic reservoirs can harbor biofilm if not emptied and dried…
Better dental floss from other brands
Graded higher than the Waterpik average of 75.
- Plant-based waxed fiber floss
- A third party reports verifying it as PFAS-free
- Fragrance allergens and sensitizers
- nylon monofilament
- The brand calls it PFAS-free, which we have not verified
- Microplastics
2 hazards checked on this product, all on its full breakdown.
- Coconut fiber-based floss
- The brand calls it PFAS-free, which we have not verified
- Microbial growth in natural fiber storage
The same question, asked of the other dental floss brands
Best average grade first. Waterpik averages 75.
See every Waterpik product we grade on the Waterpik brand page, or the full dental floss ranking.