WHO TESTS MASKLAB™ PRODUCTS AND HOW CAN I TRUST THEM?

SGS is one of the world's leading inspection, verification, testing and certification company. You may learn more about them on their website or on Wikipedia.

Eurofins is one of Europe's leading testing laboratories. Its size is comparable to that of SGS. It is 1 of 12 labs named on EA's accredited labs list for EN 14683. You may learn more about them on their website or on Wikipedia.

Nelson Labs is the leading global provider of laboratory testing, and is one of the world's first and only provider of the Particle Filtration Efficiency: Latex Particle Challenge Test. Their main laboratory is in Salt Lake City, Utah, United States. You may learn more about them on their website.

STC, Hong Kong Standards and Testing Centre, was established in 1963 as Hong Kong’s first independent and not-for-profit Testing, Inspection and Certification organization. You may learn more about them on their website.