Liyuan mask is produced by Shenzhen Xingchuangyuan Technology Co., Ltd., the production standards and requirements meet the relevant national norms, and the product quality is qualified.
Judgment method:
1. Look at the package and label: protective masks can be roughly divided into civil protective masks, industrial protective masks and medical masks, among which medical masks are divided into disposable medical masks, medical surgical masks and medical protective masks.
The information on the outer packaging of the protective mask is very helpful to distinguish the authenticity of the mask. Packaging information should generally include the name, address, implementation standards, production date and validity period, instructions for use, etc. As a medical device, medical masks can only be produced if the enterprise obtains the production license number, which can be verified on the website of the State Administration of Medical Supplies.
2, look at the material: most masks are mainly composed of three layers of non-woven fabrics, the inner and outer layers are mostly spunbonded non-woven fabrics, and the middle layer is meltblown non-woven fabrics or nano-fiber composite materials with higher filtration performance, which is the key core material for masks to achieve barrier protection function. Meltblown cloth is the heart of the mask, which is related to the filtering effect of the whole mask.
3. Perspective luminosity: Due to the dense structure of meltblown cloth, qualified masks are almost opaque, while many fake masks without meltblown cloth have higher light transmittance. Under the same light source, there will be significant differences between qualified masks and fake masks, even in natural light, qualified products are not opaque at all when worn, but the face skin is faintly visible when worn.