Humble Brush averages 75 out of 100 on PFAS Authority's PFAS and toxin screen across the 4 Humble Brush products graded as of October 2026, and all 4 reach its 70 point pass mark.
Free to quote with attribution to PFAS Authority and a link to pfasauthority.com/brands/humble-brush.
Humble Brush grades Excellent 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.
Worth buying from Humble Brush Good or better, best-graded first
Humble Brush
The Humble Co. Ultra Tight Interdental Bamboo Brush
75ExcellentPFAS grade
✓bamboo bristles, bamboo handle
⚠We found no PFAS statement from the brand
⚠Microorganism growth in natural fiber bristles, Bamboo bristles retain moisture more readily than synthetic…
Humble Brush averages 75 out of 100 on PFAS Authority's PFAS and toxin screen across the 4 Humble Brush products graded as of October 2026, and all 4 reach its 70 point pass mark. Grades are model-based estimates built from published materials, ingredients and disclosures, not lab tests.
Is Humble Brush non-toxic?
The Humble Co. Ultra Tight Interdental Bamboo Brush is the highest-graded Humble Brush product we have scored, at 75/100. It depends on the product line rather than the brand, so check the grade of the exact item you are buying.
Which Humble Brush products are lower concern for PFAS?
The highest-graded Humble Brush products we have scored are The Humble Co. Ultra Tight Interdental Bamboo Brush, The Humble CO. - Bamboo Interdental Brush - Size 2-0.5 mm - Developed by Dentists - Designed in Sweden - Sustainable & R, Humble Brush Floss Picks Charcoal 50 Pieces. That is our model-based estimate from materials and public disclosure, not a lab test.
