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Q: What UV rays should sunglasses filter out?
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UV-A and UV-B Rays From the Sun
Ultraviolet (UV) rays released by the sun come in several types. Some are typically filtered out by the Earth's atmosphere, but UV-A and UV-B type rays can harm delicate eyes, which is why sunglasses are so important. Look for high-quality sunglasses that filter 99 to 100 percent of both UV-A and UV-B rays if you want the best quality and protection in your sunglasses.
