Maxi-Cosi · Child Car Seats
Maxi-Cosi Tanza Folding Booster
Lower PFAS concern; standard booster seat materials, but brand offers no transparency.
The Tanza uses common injection-molded polypropylene and metal, materials with low inherent PFAS risk. However, Maxi-Cosi provides no public disclosure about PFAS-based flame retardants, water repellents, or manufacturing processes. No third-party testing or certification is readily available for this model.
Shop Maxi-Cosi on Amazon →Material
Polypropylene seat/back, metal frame
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
Why this grade
Category baseline
furniture is a category where PFAS exposure is more common.
No PFAS disclosure
No public statement about PFAS in this product.
Safe base material
Made from a material with no inherent PFAS use (ceramic, mineral, or natural fiber).
The full breakdown
What it's made of and why it matters
The Tanza uses polypropylene (plastic) for the seat shell and back support, with a metal frame for structural integrity. Polypropylene is inert at room temperature and does not leach BPA, phthalates, or other endocrine disruptors under normal use conditions. The fabric upholstery is the primary concern for off-gassing or dye residues, though booster seats typically use minimal chemical finishes compared to infant carriers. No flame retardant treatment is typically required in booster seat fabrics under current US regulations.
The brand's record and disclosure
Maxi-Cosi (owned by Dorel Industries) does not publicly disclose detailed chemical composition or PFAS testing for this product line. The brand has no documented safety recalls specific to chemical leaching on the Tanza booster. Maxi-Cosi complies with FMVSS 213 (US federal booster seat safety standard) and ADAC testing in Europe, which focus on crash protection rather than chemical safety. No transparency statements on PFAS or restricted substance avoidance are available from the manufacturer.
How it compares in its category
Booster seats are lower chemical-risk products than infant carriers because they lack extended padding, memory foam, or complex upholstery systems where flame retardants accumulate. The Tanza's simple polypropylene shell is chemically comparable to budget alternatives (e.g., Chicco, Safety 1st boosters) and less chemical-heavy than premium options with fabric-intensive designs. Most standalone boosters in this category avoid PVC and phthalate-prone materials, making material composition a secondary differentiator.
If you buy it
Air out the seat for 24-48 hours before first use to minimize any residual manufacturing odors. Clean the fabric with mild soap and water; avoid solvents that could degrade the polypropylene shell or adhesive bonds. Do not leave the booster in direct sunlight or hot vehicles for extended periods, as polypropylene can soften and off-gas volatile compounds if temperatures exceed 140F (60C). Replace the seat after any crash event and inspect the shell and frame for cracks or damage annually.
Beyond PFAS: other things we checked
Established hazard classes for this product type, assessed from public information. These never change the PFAS grade; a Likely flag caps the Verdict at “Buy with care.”
Polypropylene degradation from heat exposure
Polypropylene seat shells can soften and leach trace amounts of oligomers if left in hot cars; risk is low under normal storage but increases with chronic high-temperature exposure.
Fabric dye or finish residues
No specific azo dye, formaldehyde resin, or antimony contamination has been reported in Maxi-Cosi booster upholstery; booster fabrics are typically minimal-treatment materials.
Metal frame corrosion or lead in welds
Booster frames are usually steel or aluminum; no recalls or testing data suggest lead solder or cadmium coating issues in the Tanza line.
Flame retardant chemicals in fabric
US booster seat regulations do not mandate flame retardant treatment; Tanza fabric is not documented to contain brominated or phosphate-based flame retardants.
Manufacturer disclosure and chemical transparency
Maxi-Cosi provides no public restricted substance list, PFAS commitment, or third-party chemical certification for boosters; this opacity limits independent verification of safety claims.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 72% confidence. It is not a lab result.
No independent PFAS lab test is on record for this exact product. A lab test could move the score in either direction.
The brand has not made a specific, verifiable PFAS-free statement, so part of this score reflects that missing disclosure rather than a confirmed material.
Formulations and coatings change between production runs. Always check the current label before buying.
More child car seats grades
How we score: every product runs through the same public 0–100 rubric based on materials, coatings, brand disclosure, lab findings, and recalls. See the full methodology → Spotted a mistake? Report an error.