54Good

Dennis Uniform Review, Is Dennis Uniform Non-Toxic?

The verdict
Dennis Uniform averages 54 out of 100 on PFAS Authority's PFAS and toxin screen across the 4 Dennis Uniform products graded as of November 2026, and none of them reach its 70 point pass mark.
Free to quote with attribution to PFAS Authority and a link to pfasauthority.com/brands/dennis-uniform.

Dennis Uniform grades Good on our four-band scale. On disclosure, the brand says nothing publicly about PFAS. See what every brand has published about PFAS for how that compares.

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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  • 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.

  • 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

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Vegan Mattress

100ExcellentPFAS grade
✓ MADE SAFE Certified✓ Global Organic Textile Standard (GOTS)
  • 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.

Does Dennis Uniform have PFAS, by category

Which Dennis Uniform products contain PFAS? Poor and Bad, we’d swap these

Boys Flat Front Stretch Twill Pants 049

Dennis Uniform

Boys Flat Front Stretch Twill Pants 049

65GoodPFAS grade
  • cotton blend twill, no special treatment disclosed
  • We found no PFAS statement from the brand
  • Formaldehyde / VOCs. Cotton twill can be dyed with azo compounds or finished with formaldehyde-based resins…

4 hazards checked on this product, all on its full breakdown.

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  • cotton or cotton-polyester blend jersey knit
  • We found no PFAS statement from the brand
  • Azo dyes and color fastness. Red dyes in children's apparel can include azo compounds; Dennis Uniform…

3 hazards checked on this product, all on its full breakdown.

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Dennis Girls School Uniforms Lot Of 3

Dennis Uniform

Dennis Girls School Uniforms Lot Of 3

65GoodPFAS grade
  • school uniform fabric, likely cotton blend or polyester
  • We found no PFAS statement from the brand
  • Formaldehyde / VOCs. School uniform fabrics may be treated with formaldehyde-based resins for wrinkle…

3 hazards checked on this product, all on its full breakdown.

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Boys Flat Front Tech Twill Pants

Dennis Uniform

Boys Flat Front Tech Twill Pants

20BadPFAS grade
  • polyester twill with unspecified water-repellent coating/stain finish
  • We found no PFAS statement from the brand
  • PFAS. Tech twill pants almost certainly receive a water-repellent coating treatment; without brand…

5 hazards checked on this product, all on its full breakdown.

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Dennis Uniform and PFAS, common questions

Does Dennis Uniform have PFAS?
Dennis Uniform averages 54 out of 100 on PFAS Authority's PFAS and toxin screen across the 4 Dennis Uniform products graded as of November 2026, and none of them reach its 70 point pass mark. Grades are model-based estimates built from published materials, ingredients and disclosures, not lab tests.
Is Dennis Uniform non-toxic?
No Dennis Uniform product we graded reaches Good. The best of them is Boys Flat Front Stretch Twill Pants 049 at 65/100.
Which Dennis Uniform products should I avoid?
The lowest-graded Dennis Uniform products we have scored are Boys Flat Front Tech Twill Pants, Dennis Girls School Uniforms Lot Of 3, Dennis uniform short sleeve jersey polo red YS Juniors AS (5-6) school. Each one links to the evidence behind its grade.

Every grade uses the same public rubric. How grades work →