GHS Review, Is GHS Non-Toxic?
GHS averages 62 out of 100 on PFAS Authority's PFAS and toxin screen across the 3 GHS products graded as of October 2026, and 1 of them reach its 70 point pass mark.
GHS 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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Top-graded picks in the categories readers replace first, every one scored on the same rubric.
- 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.
Aquasure
Premier Series 75 GPD Under Sink Reverse Osmosis Water Filtration System
- 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
- 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.
Which GHS products are PFAS-free? Good or better, best-graded first
- Steel wire core, nickel-plated wrap
- We found no PFAS statement from the brand
- Nickel contact sensitization. Nickel plating may trigger dermatitis in individuals with nickel allergy…
Which GHS products contain PFAS? Poor and Bad, we’d swap these
- Steel/nickel-plated core; coating composition unspecified
- We found no PFAS statement from the brand
- Nickel contact dermatitis. Nickel-plated steel core is in direct skin contact during playing and restringing.…
3 hazards checked on this product, all on its full breakdown.
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- Hexagonal wire core with unspecified coating
- We found no PFAS statement from the brand
- Coating composition opacity. Proprietary polymer coating is unidentified; unknown formulation prevents…
GHS and PFAS, common questions
- Does GHS have PFAS?
- GHS averages 62 out of 100 on PFAS Authority's PFAS and toxin screen across the 3 GHS products graded as of October 2026, and 1 of them reach its 70 point pass mark. Grades are model-based estimates built from published materials, ingredients and disclosures, not lab tests.
- Is GHS non-toxic?
- Boomers 6-String Electric Guitar Strings is the highest-graded GHS product we have scored, at 85/100. It depends on the product line rather than the brand, so check the grade of the exact item you are buying.
- Which GHS products are lower concern for PFAS?
- The highest-graded GHS products we have scored are Boomers 6-String Electric Guitar Strings. That is our model-based estimate from materials and public disclosure, not a lab test.
- Which GHS products should I avoid?
- The lowest-graded GHS products we have scored are GHS Coated Boomers Electric Guitar Strings, GHS CBGBL Coated Boomers Electric Guitar Strings. Each one links to the evidence behind its grade.
Every grade uses the same public rubric. How grades work →