Short of an elaborate test apparatus, there is actually no way for a consumer to independently confirm they have safe glasses.
It's easy to make fakes that look exactly like the real thing. So a printed ISO code or brand name is only sufficient if the supply chain is secure.
And unfortunately, there have been plenty of stories lately about seeming lax stock management at Amazon that makes it hard to know exactly what you're going to get.
It's easy to make fakes that look exactly like the real thing. So a printed ISO code or brand name is only sufficient if the supply chain is secure.
And unfortunately, there have been plenty of stories lately about seeming lax stock management at Amazon that makes it hard to know exactly what you're going to get.