How to effectively judge the authenticity of the breathable membrane?

When identifying the authenticity of the breathable membrane, it can be judged by the method of laboratory testing, because the real high-quality waterproof breathable membrane does not use glue for compounding, and it also fully complies with international standards in the process of production and processing. The air flow that can be produced must meet the corresponding standards, and this type of product must have the effect of anti-oxidation treatment, so it can be judged whether the breathable membrane is real or not through experimental testing. In addition to experimental testing, some simple hands-on testing can also be done. When using this method for testing, you can see that the breathable film has very obvious pressure points on both sides. After tearing this product, the middle will be There is a polymer layer, and this layer is milky white, very soft, and there are corresponding pressure points on this layer of film.