Vesync (US) corporation and PFAS, what the company told Minnesota

Vesync (US) corporation has filed 75 PFAS disclosures with the Minnesota Pollution Control Agency, covering 17 products and naming 19 distinct compounds across 34 components. 9 of those filings report the part is 90 to 100% PFAS by mass. Everything below is the company’s own statement to a regulator, not our assessment.

Disclosures filed
75
Products covered
17
Compounds named
19
Declared uses
17

How much is reported

Concentration bands as filed, heaviest declared first, with filings that give no concentration at the bottom. Counts are of filings, since one product can report more than one compound.

  • 90 to 100%9 filings
  • 300,000 to <600,000 ppm (60%)1 filing
  • 150,000 ppm to <300,000 ppm (30%)1 filing
  • 10,000 ppm to <150,000 ppm (15%)7 filings
  • 1,000 ppm to <10,000 ppm (1%)2 filings
  • 100 ppm to <1,000 ppm (0.1%)20 filings
  • Practical Detection Limit to <100 ppm35 filings

60 of 75 filings

Capped at 60 rows so the page stays readable on a phone. The rest are in /api/public/disclosures.

Air fryer seriesCOSORI
Where in the product,
Fluoroplastic pipe
What it is doing,
Insulators
Compound,
poly(tetrafluoroethylene-co-hexafluoropropylene) (FEP) (CAS 25067-11-2)
How much the filer reports,
90 to 100%

HTS 8516.60.4070 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30

Air fryer seriesCOSORI
Where in the product,
NTC Wire Insulation
What it is doing,
Insulators
Compound,
poly(tetrafluoroethylene) (PTFE) (CAS 9002-84-0)
How much the filer reports,
90 to 100%

HTS 8516.60.4070 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30

Air Fryer Toaster Oven seriesCOSORI
Where in the product,
Fluoroplastic wire cable
What it is doing,
Insulators
Compound,
poly(tetrafluoroethylene) (PTFE) (CAS 9002-84-0)
How much the filer reports,
90 to 100%

HTS 8516.60.4070 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30

Coffee machine seriesCOSORI
Where in the product,
Insulating Sleeving
What it is doing,
Insulators
Compound,
poly(tetrafluoroethylene) (PTFE) (CAS 9002-84-0)
How much the filer reports,
90 to 100%

HTS 8516.71.0020 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30

Food Dehydrator seriesCOSORI
Where in the product,
Electronic wire cable
What it is doing,
Insulators
Compound,
poly(tetrafluoroethylene-co-hexafluoropropylene) (FEP) (CAS 25067-11-2)
How much the filer reports,
90 to 100%

HTS 8516.79.0000 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30

Food Dehydrator seriesCOSORI
Where in the product,
NTC Wire Insulation
What it is doing,
Insulators
Compound,
poly(tetrafluoroethylene) (PTFE) (CAS 9002-84-0)
How much the filer reports,
90 to 100%

HTS 8516.79.0000 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30

Kettle seriesCOSORI
Where in the product,
Fluoroplastic wire cable
What it is doing,
Insulators
Compound,
poly(tetrafluoroethylene-co-hexafluoropropylene) (FEP) (CAS 25067-11-2)
How much the filer reports,
90 to 100%

HTS 8516.79.0000 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30

Pressure Cooker seriesCOSORI
Where in the product,
Internal Wire cable
What it is doing,
Insulators
Compound,
poly(tetrafluoroethylene) (PTFE) (CAS 9002-84-0)
How much the filer reports,
90 to 100%

HTS 8516.79.0000 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30

Rice Cooker seriesCOSORI
Where in the product,
Internal Wire cable
What it is doing,
Insulators
Compound,
poly(tetrafluoroethylene) (PTFE) (CAS 9002-84-0)
How much the filer reports,
90 to 100%

HTS 8516.79.0000 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30

Air Humidifier seriesLevoit
Where in the product,
Plastic Parts
What it is doing,
Flame retardant
Compound,
poly(tetrafluoroethylene) (PTFE) (CAS 9002-84-0)
How much the filer reports,
300,000 to <600,000 ppm (60%)

HTS 8509.80.5070 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30

Air Humidifier seriesLevoit
Where in the product,
water valve
What it is doing,
Intermediate
Compound,
2,4,6-trimethyl-2,4,6-tris(3,3,3-trifluoropropyl)-1,3,5,2,4,6-trioxatrisilinane (CAS 2374-14-3)
How much the filer reports,
150,000 ppm to <300,000 ppm (30%)

HTS 8509.80.5070 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30

Nutrition Scale seriesCOSORI
Where in the product,
battery
What it is doing,
Binder
Compound,
poly(1,1-difluoroethylene) (PVDF) (CAS 24937-79-9)
How much the filer reports,
10,000 ppm to <150,000 ppm (15%)

HTS 8423.10.0010 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30

Kitchen Scale seriesEtekcity
Where in the product,
Battery
What it is doing,
Binder
Compound,
poly(1,1-difluoroethylene) (PVDF) (CAS 24937-79-9)
How much the filer reports,
10,000 ppm to <150,000 ppm (15%)

HTS 8423.10.0010 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30

Kitchen Thermometer seriesEtekcity
Where in the product,
Battery separator
What it is doing,
Binder
Compound,
poly(1,1-difluoroethylene) (PVDF) (CAS 24937-79-9)
How much the filer reports,
10,000 ppm to <150,000 ppm (15%)

HTS 9025.19.8060 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30

Luggage Scale seriesEtekcity
Where in the product,
Battery
What it is doing,
Binder
Compound,
poly(1,1-difluoroethylene) (PVDF) (CAS 24937-79-9)
How much the filer reports,
10,000 ppm to <150,000 ppm (15%)

HTS 8423.10.0010 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30

Weight Scale seriesEtekcity
Where in the product,
Battery
What it is doing,
Binder
Compound,
poly(1,1-difluoroethylene) (PVDF) (CAS 24937-79-9)
How much the filer reports,
10,000 ppm to <150,000 ppm (15%)

HTS 8423.10.0010 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30

Vacuum cleaner seriesLevoit
Where in the product,
Battery separator
What it is doing,
Binder
Compound,
poly(1,1-difluoroethylene) (PVDF) (CAS 24937-79-9)
How much the filer reports,
10,000 ppm to <150,000 ppm (15%)

HTS 8508.11.0000 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30

Various fan seriesLevoit
Where in the product,
battery
What it is doing,
Binder
Compound,
poly(1,1-difluoroethylene) (PVDF) (CAS 24937-79-9)
How much the filer reports,
10,000 ppm to <150,000 ppm (15%)

HTS 8414.51.9090 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30

Air fryer seriesCOSORI
Where in the product,
fuse tube
What it is doing,
Flame retardant
Compound,
Perfluorotri-n-butylamine (CAS 86508-42-1)
How much the filer reports,
1,000 ppm to <10,000 ppm (1%)

HTS 8516.60.4070 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30

Vacuum cleaner seriesLevoit
Where in the product,
plastic PC sheet
What it is doing,
Flame retardant
Compound,
1,1,2,2,3,3,4,4,4-nonafluorobutane-1-sulfonic acid (CAS 375-73-5)
How much the filer reports,
1,000 ppm to <10,000 ppm (1%)

HTS 8508.11.0000 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30

Air fryer seriesCOSORI
Where in the product,
Teflon seal
What it is doing,
Corrosion inhibitor
Compound,
poly(tetrafluoroethylene) (PTFE) (CAS 9002-84-0)
How much the filer reports,
100 ppm to <1,000 ppm (0.1%)

HTS 8516.60.4070 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30

Air fryer seriesCOSORI
Where in the product,
Teflon seal
What it is doing,
Sealant
Compound,
poly(tetrafluoroethylene) (PTFE) (CAS 9002-84-0)
How much the filer reports,
100 ppm to <1,000 ppm (0.1%)

HTS 8516.60.4070 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30

Air fryer seriesCOSORI
Where in the product,
Teflon seal
What it is doing,
Flame retardant
Compound,
poly(tetrafluoroethylene) (PTFE) (CAS 9002-84-0)
How much the filer reports,
100 ppm to <1,000 ppm (0.1%)

HTS 8516.60.4070 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30

Air Fryer Toaster Oven seriesCOSORI
Where in the product,
Teflon seal
What it is doing,
Corrosion inhibitor
Compound,
poly(tetrafluoroethylene) (PTFE) (CAS 9002-84-0)
How much the filer reports,
100 ppm to <1,000 ppm (0.1%)

HTS 8516.60.4070 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30

Air Fryer Toaster Oven seriesCOSORI
Where in the product,
Teflon seal
What it is doing,
Sealant
Compound,
poly(tetrafluoroethylene) (PTFE) (CAS 9002-84-0)
How much the filer reports,
100 ppm to <1,000 ppm (0.1%)

HTS 8516.60.4070 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30

Air Fryer Toaster Oven seriesCOSORI
Where in the product,
Teflon seal
What it is doing,
Flame retardant
Compound,
poly(tetrafluoroethylene) (PTFE) (CAS 9002-84-0)
How much the filer reports,
100 ppm to <1,000 ppm (0.1%)

HTS 8516.60.4070 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30

Kettle seriesCOSORI
Where in the product,
Plastic structural part
What it is doing,
Flame retardant
Compound,
1,1,2,2,3,3,4,4,4-nonafluorobutane-1-sulfonic acid (CAS 375-73-5)
How much the filer reports,
100 ppm to <1,000 ppm (0.1%)

HTS 8516.79.0000 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30

Kettle seriesCOSORI
Where in the product,
temperature controller
What it is doing,
Flame retardant
Compound,
poly(tetrafluoroethylene) (PTFE) (CAS 9002-84-0)
How much the filer reports,
100 ppm to <1,000 ppm (0.1%)

HTS 8516.79.0000 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30

Kettle seriesCOSORI
Where in the product,
Temperature-controlled connector
What it is doing,
Flame retardant
Compound,
poly(tetrafluoroethylene) (PTFE) (CAS 9002-84-0)
How much the filer reports,
100 ppm to <1,000 ppm (0.1%)

HTS 8516.79.0000 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30

Kettle seriesCOSORI
Where in the product,
Plastic structural part
What it is doing,
Flame retardant
Compound,
poly(tetrafluoroethylene) (PTFE) (CAS 9002-84-0)
How much the filer reports,
100 ppm to <1,000 ppm (0.1%)

HTS 8516.79.0000 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30

Kitchen Thermometer seriesEtekcity
Where in the product,
Battery cover
What it is doing,
Flame retardant
Compound,
1,1,2,2,3,3,4,4,4-nonafluorobutane-1-sulfonic acid (CAS 375-73-5)
How much the filer reports,
100 ppm to <1,000 ppm (0.1%)

HTS 9025.19.8060 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30

Air Humidifier seriesLevoit
Where in the product,
Adapter housing
What it is doing,
Flame retardant
Compound,
1,1,2,2,3,3,4,4,4-nonafluorobutane-1-sulfonic acid (CAS 375-73-5)
How much the filer reports,
100 ppm to <1,000 ppm (0.1%)

HTS 8509.80.5070 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30

Air Humidifier seriesLevoit
Where in the product,
Adapter housing
What it is doing,
Flame retardant
Compound,
poly(tetrafluoroethylene) (PTFE) (CAS 9002-84-0)
How much the filer reports,
100 ppm to <1,000 ppm (0.1%)

HTS 8509.80.5070 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30

Air Purifier seriesLevoit
Where in the product,
Adapter housing
What it is doing,
Flame retardant
Compound,
1,1,2,2,3,3,4,4,4-nonafluorobutane-1-sulfonic acid (CAS 375-73-5)
How much the filer reports,
100 ppm to <1,000 ppm (0.1%)

HTS 8421.39.0115 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30

Air Purifier seriesLevoit
Where in the product,
Adapter housing
What it is doing,
Flame retardant
Compound,
poly(tetrafluoroethylene) (PTFE) (CAS 9002-84-0)
How much the filer reports,
100 ppm to <1,000 ppm (0.1%)

HTS 8421.39.0115 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30

Vacuum cleaner seriesLevoit
Where in the product,
Adapter housing
What it is doing,
Flame retardant
Compound,
1,1,2,2,3,3,4,4,4-nonafluorobutane-1-sulfonic acid (CAS 375-73-5)
How much the filer reports,
100 ppm to <1,000 ppm (0.1%)

HTS 8508.11.0000 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30

Vacuum cleaner seriesLevoit
Where in the product,
Adapter housing
What it is doing,
Flame retardant
Compound,
poly(tetrafluoroethylene) (PTFE) (CAS 9002-84-0)
How much the filer reports,
100 ppm to <1,000 ppm (0.1%)

HTS 8508.11.0000 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30

Vacuum cleaner seriesLevoit
Where in the product,
Cap rubber ring
What it is doing,
Flame retardant
Compound,
poly(tetrafluoroethylene) (PTFE) (CAS 9002-84-0)
How much the filer reports,
100 ppm to <1,000 ppm (0.1%)

HTS 8508.11.0000 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30

Various fan seriesLevoit
Where in the product,
Adapter housing
What it is doing,
Flame retardant
Compound,
1,1,2,2,3,3,4,4,4-nonafluorobutane-1-sulfonic acid (CAS 375-73-5)
How much the filer reports,
100 ppm to <1,000 ppm (0.1%)

HTS 8414.51.9090 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30

Various fan seriesLevoit
Where in the product,
Adapter housing
What it is doing,
Flame retardant
Compound,
poly(tetrafluoroethylene) (PTFE) (CAS 9002-84-0)
How much the filer reports,
100 ppm to <1,000 ppm (0.1%)

HTS 8414.51.9090 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30

Air fryer seriesCOSORI
Where in the product,
Foam tape of panel
What it is doing,
Surfactant
Compound,
trifluoromethanesulfonic acid (CAS 1493-13-6)
How much the filer reports,
Practical Detection Limit to <100 ppm

HTS 8516.60.4070 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30

Coffee Grinder seriesCOSORI
Where in the product,
Shaft seal
What it is doing,
Sealant
Compound,
1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluorooctane-1-sulfonic acid (CAS 1763-23-1)
How much the filer reports,
Practical Detection Limit to <100 ppm

HTS 8509.40.0040 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30

Coffee machine seriesCOSORI
Where in the product,
Membrane Sheet of panel
What it is doing,
Surfactant
Compound,
trifluoromethanesulfonic acid (CAS 1493-13-6)
How much the filer reports,
Practical Detection Limit to <100 ppm

HTS 8516.71.0020 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30

Nutrition Scale seriesCOSORI
Where in the product,
battery
What it is doing,
Anti-adhesive/cohesive
Compound,
2,2,3,3,4,4,5,5,6,6,7,7-dodecafluoroheptanoic acid (CAS 1546-95-8)
How much the filer reports,
Practical Detection Limit to <100 ppm

HTS 8423.10.0010 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30

Nutrition Scale seriesCOSORI
Where in the product,
battery
What it is doing,
Conductive agent
Compound,
methanesulfonamide, 1,1,1-trifluoro-N-((trifluoromethyl)sulfonyl)-, lithium salt (CAS 90076-65-6)
How much the filer reports,
Practical Detection Limit to <100 ppm

HTS 8423.10.0010 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30

Kitchen Scale seriesEtekcity
Where in the product,
Battery
What it is doing,
Anti-adhesive/cohesive
Compound,
2,2,3,3,4,4,5,5,6,6,7,7-dodecafluoroheptanoic acid (CAS 1546-95-8)
How much the filer reports,
Practical Detection Limit to <100 ppm

HTS 8423.10.0010 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30

Kitchen Scale seriesEtekcity
Where in the product,
Battery
What it is doing,
Conductive agent
Compound,
methanesulfonamide, 1,1,1-trifluoro-N-((trifluoromethyl)sulfonyl)-, lithium salt (CAS 90076-65-6)
How much the filer reports,
Practical Detection Limit to <100 ppm

HTS 8423.10.0010 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30

Kitchen Thermometer seriesEtekcity
Where in the product,
Battery cover
What it is doing,
Anti-static agent
Compound,
1,1,1-trifluoro-N-(trifluoromethanesulfonyl)methanesulfonamide (CAS 82113-65-3)
How much the filer reports,
Practical Detection Limit to <100 ppm

HTS 9025.19.8060 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30

Kitchen Thermometer seriesEtekcity
Where in the product,
PCBA
What it is doing,
Etching agent
Compound,
1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluorooctane-1-sulfonic acid (CAS 1763-23-1)
How much the filer reports,
Practical Detection Limit to <100 ppm

HTS 9025.19.8060 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30

Kitchen Thermometer seriesEtekcity
Where in the product,
label
What it is doing,
Adhesion/cohesion promoter
Compound,
1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,9-nonadecafluorononane-1-sulfonic acid (CAS 68259-12-1)
How much the filer reports,
Practical Detection Limit to <100 ppm

HTS 9025.19.8060 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30

Kitchen Thermometer seriesEtekcity
Where in the product,
Battery
What it is doing,
Conductive agent
Compound,
methanesulfonamide, 1,1,1-trifluoro-N-((trifluoromethyl)sulfonyl)-, lithium salt (CAS 90076-65-6)
How much the filer reports,
Practical Detection Limit to <100 ppm

HTS 9025.19.8060 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30

Luggage Scale seriesEtekcity
Where in the product,
Battery
What it is doing,
Anti-adhesive/cohesive
Compound,
2,2,3,3,4,4,5,5,6,6,7,7-dodecafluoroheptanoic acid (CAS 1546-95-8)
How much the filer reports,
Practical Detection Limit to <100 ppm

HTS 8423.10.0010 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30

Luggage Scale seriesEtekcity
Where in the product,
Battery
What it is doing,
Conductive agent
Compound,
methanesulfonamide, 1,1,1-trifluoro-N-((trifluoromethyl)sulfonyl)-, lithium salt (CAS 90076-65-6)
How much the filer reports,
Practical Detection Limit to <100 ppm

HTS 8423.10.0010 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30

Weight Scale seriesEtekcity
Where in the product,
Battery
What it is doing,
Anti-adhesive/cohesive
Compound,
2,2,3,3,4,4,5,5,6,6,7,7-dodecafluoroheptanoic acid (CAS 1546-95-8)
How much the filer reports,
Practical Detection Limit to <100 ppm

HTS 8423.10.0010 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30

Weight Scale seriesEtekcity
Where in the product,
Battery
What it is doing,
Conductive agent
Compound,
methanesulfonamide, 1,1,1-trifluoro-N-((trifluoromethyl)sulfonyl)-, lithium salt (CAS 90076-65-6)
How much the filer reports,
Practical Detection Limit to <100 ppm

HTS 8423.10.0010 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30

Air Humidifier seriesLevoit
Where in the product,
Membrane of panel
What it is doing,
Defoamer
Compound,
1,1,2,2,3,3,4,4,4-nonafluorobutane-1-sulfonic acid (CAS 375-73-5)
How much the filer reports,
Practical Detection Limit to <100 ppm

HTS 8509.80.5070 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30

Air Humidifier seriesLevoit
Where in the product,
wihte glue
What it is doing,
Flame retardant
Compound,
1,1,2,2,3,3,4,4,4-nonafluorobutane-1-sulfonic acid (CAS 375-73-5)
How much the filer reports,
Practical Detection Limit to <100 ppm

HTS 8509.80.5070 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30

Air Humidifier seriesLevoit
Where in the product,
PCBA
What it is doing,
Flame retardant
Compound,
1,1,2,2,3,3,4,4,4-nonafluorobutane-1-sulfonic acid (CAS 375-73-5)
How much the filer reports,
Practical Detection Limit to <100 ppm

HTS 8509.80.5070 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30

Air Humidifier seriesLevoit
Where in the product,
PCBA
What it is doing,
Etching agent
Compound,
1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluorooctane-1-sulfonic acid (CAS 1763-23-1)
How much the filer reports,
Practical Detection Limit to <100 ppm

HTS 8509.80.5070 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30

Air Humidifier seriesLevoit
Where in the product,
label
What it is doing,
Adhesion/cohesion promoter
Compound,
1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,10-henicosafluorodecane-1-sulfonic acid (CAS 335-77-3)
How much the filer reports,
Practical Detection Limit to <100 ppm

HTS 8509.80.5070 · Minnesota disclosure MN-PKKUN43 · published 2026-09-30

Other companies that have filed

Source, manufacturer filings made to the Minnesota Pollution Control Agency under the state’s PFAS in Products law and published through PRISM, run by the Interstate Chemicals Clearinghouse. These are the manufacturers’ own statements, not our grades and not laboratory results. A filing covers the product as sold in Minnesota and says nothing about products or formulations the company did not file. Reporting was still open when this was pulled, so absence from the set is not evidence a product is PFAS-free.