The Humble Co. Ultra Tight Interdental Bamboo Brush vs ORAL B Glide Pro-Health Floss: which is safer?
ORAL B Glide Pro-Health Floss is our pick: better on PFAS and on the overall hazard picture.
Humble Brush
The Humble Co. Ultra Tight Interdental Bamboo Brush
PFAS grade
Excellent 75/100
Overall grade
Good 67/100
Verdict
Buy
Hazard flags
⚑ 2
Material
bamboo bristles, bamboo handle
Confidence
82%
PossibleMicroorganism growth in natural fiber bristles
PossibleBristle shedding or fiber release during use
Our pick
Oral-B
ORAL B Glide Pro-Health Floss
PFAS grade
Excellent 100/100
Overall grade
Excellent 92/100
Verdict
Buy
Hazard flags
⚑ 2
Material
nylon monofilament
Confidence
78%
PossibleNylon microplastics from fragmentation
PossibleGum trauma from improper use
Where these two actually differ
- We flag Microorganism growth in natural fiber bristles and Bristle shedding or fiber release during use on the Humble Brush and not on the Oral-B.
- We flag Nylon microplastics from fragmentation and Gum trauma from improper use on the Oral-B and not on the Humble Brush.
- The Humble Brush is bamboo bristles, bamboo handle where the Oral-B is nylon monofilament, which is most of the difference in these two grades.
- The gap is 25 points, wide enough that this is not a close call, and the Oral-B is the one to buy.
Both products run through the same public rubric: materials, coatings, brand disclosure, lab findings, and recalls, plus a beyond-PFAS hazard analysis. Grades are model-based estimates, not lab tests. How grades work →
More dental floss: see the full ranking