How to choose a sunshade;
1, sun protection index (anti-ultraviolet index)
First of all, look at the fabric, we must pay attention to the choice of brand. Regular brand umbrellas, the state requires that each umbrella be marked with the corresponding sun protection index. At present, domestic and foreign standards generally adopt UPF value, that is, the value of ultraviolet protection coefficient, to evaluate the ultraviolet protection performance of textiles. UPF value is the ratio of the average amount of ultraviolet radiation to unprotected skin. The higher the UPF value, the better the ultraviolet resistance. This indicator will be marked on the products of regular manufacturers.
2. Light transmittance
Light transmittance refers to the percentage of luminous flux transmitted through a transparent or translucent object to its incident luminous flux. The wavelength of ultraviolet rays in sunlight is different from ordinary light, and ultraviolet rays are invisible. The light transmittance mainly considers the adaptability of the eyes. The anti-ultraviolet index is invisible and is an important index to protect health.
Finally, Klipp reminds everyone that you must choose umbrellas with complete trademarks produced by regular manufacturers when buying umbrellas. Ladies should not only take an umbrella when they go out, but also wear sunscreen to avoid sunburn.
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