Protection of sunglasses against ultraviolet rays, what do 400UV mean?

Hickory Plains

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Join Date: Oct 2012

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Protection of sunglasses against ultraviolet rays, what do 400UV mean?

05-04-2013, 12:11 PM

I know that UV is ultraviolet, I want to know what 400 means, is some level of protection??Thanks
Tags: 400uv, sunglasses, sunglasses protection
Hickory Ridge

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Join Date: Oct 2012

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#2

05-04-2013, 12:11 PM

yes,it should be the level of protection.the higher,the better.
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