The customized mask filter element of the sunscreen mask is an anti-ultraviolet fabric, which can not only prevent sun protection but also prevent air pollution. So buy better quality ones. The custom-made sunscreen masks on the market are basically large masks with a long veil underneath, and some sunscreen masks can be buckled from the back of the neck to cover the face, shoulders and neck.
These sunscreen masks are made of pure cotton, chiffon, lace, polyester, silk, etc., and the price ranges from a few hundred yuan to 10 yuan. However, all shopkeepers claim they have sun and UV protection. How to distinguish whether a mask can protect against sun? Look at the UPF index of the mask, UPF value>40.
3. What does "meme" in silk mean? The gram weight (g/m2) of "mmm" is the weight measurement unit of silk material, referred to as "mm". When seeing mm in the silk series, don't misunderstand it as mm~1mmm=4.3056g/m2. The number of mmm cannot represent a measure of silk quality and must be selected according to needs.
Ordinary silk has 8, 12, 16, 19, 30 (mmm). The larger the quantity, the heavier the silk and the more expensive it is compared to the price. Customized sun masks.
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