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The sweltering summer sun is starting to impress us. In this season, sun protection is the main event, but it should be noted that in addition to sun protection for the skin, we also need to wear protective glasses to protect the eyes.

Sunglasses, as protective eyewear, require a certain degree of UV protection. sunglasses manufacturer  There are a lot of sunglasses on the market that are just plain dark mirrors without adequate UV protection. And if you wear such glasses, it will increase the absorption of ultraviolet rays.

Therefore, as a form of protective eyewear, sunglasses cannot just "look useful" on the outside. At present, ordinary anti-ultraviolet sunglasses will have the word UV400, which is a relatively generally applicable protection level. "UV400": That is, the average transmittance of ultraviolet rays with a wavelength below 400nm passing through the lens does not exceed 2%, which is a sufficient level for daily use.

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