Wednesday – October 19, 2022
XRF test results for the children’s KN95 synthetic fiber mask pictured.
No concerning metals were found in any component of this product.
Reading #1) Testing with the blue side of the fabric outward / mask folded in half once and then again so four layers together. 60 second test. Repeated multiple times to confirm the results.
- Lead (Pb): non-detect
- Cadmium (Cd): non-detect
- Tin (Sn): non-detect
- Mercury (Hg): non-detect
- Selenium (Se): non-detect
- Barium (Ba): non-detect
- Arsenic (As): non-detect
- Chromium (Cr): non-detect
- Antimony (Sb): non-detect
- Zinc (Zn): 15 +/- 5 ppm
- Titanium (Ti): 1,828 +/- 285 ppm
- No other metals detected in consumer goods mode.
Reading #2) Testing with the white side of the fabric outward / mask folded in half once and then again so four layers together. 60 second test.
- Lead (Pb): non-detect
- Cadmium (Cd): non-detect
- Tin (Sn): non-detect
- Mercury (Hg): non-detect
- Selenium (Se): non-detect
- Barium (Ba): non-detect
- Arsenic (As): non-detect
- Chromium (Cr): non-detect
- Antimony (Sb): non-detect
- Zinc (Zn): 21 +/- 5 ppm
- Titanium (Ti): 1,647 +/- 279 ppm
- No other metals detected in consumer goods mode.
Reading #3) Testing on the white rubber adjusting beads on the ear straps. 60 second test.
- Lead (Pb): non-detect
- Cadmium (Cd): non-detect
- Tin (Sn): non-detect
- Mercury (Hg): non-detect
- Selenium (Se): non-detect
- Barium (Ba): 109 +/- 71 ppm
- Arsenic (As): non-detect
- Chromium (Cr): non-detect
- Antimony (Sb): non-detect
- Zinc (Zn): 211 +/- 28 ppm
- Chlorine (Cl): 360,000 ppm
- Titanium (Ti): non-detect
- No other metals detected in consumer goods mode.
Reading #4) Testing on the white ear straps / adjusting bands. 60 second test.
- Lead (Pb): non-detect
- Cadmium (Cd): non-detect
- Tin (Sn): non-detect
- Mercury (Hg): non-detect
- Selenium (Se): non-detect
- Barium (Ba): non-detect
- Arsenic (As): non-detect
- Chromium (Cr): non-detect
- Antimony (Sb): non-detect
- Zinc (Zn): 155 +/- 9 ppm
- Chlorine (Cl): non-detect
- Titanium (Ti): 1,301 +/- 256 ppm
- No other metals detected in consumer goods mode.
For those new to this website
Tamara Rubin is a Federal-award-winning independent advocate for consumer goods safety and a documentary filmmaker. She is also a mother of Lead-poisoned children. Tamara’s sons were acutely Lead-poisoned in August of 2005. She began testing consumer goods for toxicants in 2009 and was the parent-advocate responsible for finding Lead in the popular fidget spinner toys in 2017. Her work was also responsible for two CPSC product recalls in the summer of 2022, the Jumping Jumperoo recall (June 2022) and the Lead painted NUK baby bottle recall (July 2022) and was featured in an NPR story about Lead in consumer goods in August of 2022. Tamara uses XRF testing (a scientific method used by the U.S. Consumer Product Safety Commission) to test consumer goods for toxicants (specifically heavy metals), including Lead, Cadmium, Mercury, Antimony, and Arsenic. All test results reported on this website are science-based, accurate, and replicable. Items are tested multiple times, to confirm the test results for each component tested and reported on. Please click through to this link to learn more about the testing methodology used for the test results discussed and reported on this website.
Phew! Glad to hear this. Thank you for testing this product. I’d be extremely curious how other disposable masks compare, as there was a concerning study that came out recently about masks containing high levels of lead, antimony, and copper: https://www.sciencedaily.com/releases/2021/05/210504112637.htm
I’d be happy to send you a variety of different masks to test if you’re interested.