Max Advanced Deep Carpet Cleaner vs Shaw Cornerstone Batter Up Ii 12-Ft W X Cut-To-Length Textured Interior Carpet: which is safer?
Rug Doctor Max Advanced Deep Carpet Cleaner is the clear pick. Shaw Cornerstone Batter Up Ii 12-Ft W X Cut-To-Length Textured Interior Carpet carries a failing PFAS grade, and we never recommend buying a failing product.
Our pick
Rug Doctor
Max Advanced Deep Carpet Cleaner
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleSurfactant skin and eye irritation
PossibleResidue buildup on carpet fibers
Shaw Industries
Shaw Cornerstone Batter Up Ii 12-Ft W X Cut-To-Length Textured Interior Carpet
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
LikelyUndisclosed stain-resistant chemical treatment
PossibleVolatile organic compounds (VOC) and adhesive off-gassing
ReportedMicrofiber shedding
Where these two actually differ
- We flag Surfactant skin and eye irritation and Residue buildup on carpet fibers on the Rug Doctor and not on the Shaw Industries.
- We flag Undisclosed stain-resistant chemical treatment, Volatile organic compounds (VOC) and adhesive off-gassing and Microfiber shedding on the Shaw Industries and not on the Rug Doctor.
- The Rug Doctor is Aqueous cleaning solution, surfactants, water where the Shaw Industries is nylon/polyester blend with stain-resistant treatment, which is most of the difference in these two grades.
- The gap is 45 points, wide enough that this is not a close call, and the Rug Doctor is the one to buy.
- We are less certain about the Shaw Industries grade, at 45% confidence against 72%, because it discloses less.
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 carpets & rugs: see the full ranking