1. Let the smoker take a puff first, and then hold it in the mouth, quickly cover the mouth with the mask(Medical Respirator Company), and then blow the smoke out. The less smoke from the outer layer of the mask, the better the filtering performance of the mask. Of course, the respiratory resistance must be evaluated at the same time. If the mask emits less smoke, the breathing is smoother, indicating that the filtering performance of the mask is very good. But if there is very little smoke, but breathing is difficult, it means that the breathing resistance of this mask is too large and it is not a good mask.

2. Although some masks are very thin and look like fake masks(Hospital Face Mask Factory), their filtering performance can be better than most masks. Therefore, the quality of a mask cannot be evaluated solely from its appearance.

3. Comparing the implementation standards, it can be seen from the previous mask(Earloop Face Mask Manufacturer) standards that it is not that the protective effect of medical masks is good, but it depends on the implementation standards to make a good performance comparison. But it is not to say that the implementation standards marked on the mask packaging box are good references. You need to look at the comparison of the test reports. Of course, these are not omnipotent. After all, the entire filter membrane market is so chaotic. Mask manufacturers do not have a stable supply of supplies. The quality of the masks produced varies greatly. Even though all the qualifications are complete, there are problems due to the materials supplied. , Resulting in large differences in the quality of the actual masks produced, and there will be many unqualified products mixed in. So consumers can make a subjective evaluation through the suggestions in Article 1.

4. It is recommended that manufacturers strictly control the product quality of masks, including the supply quality of raw materials such as filters. After all, the performance of masks is directly related to the health of consumers. The better the quality, the longer the company will be. It is recommended that mask manufacturers configure corresponding testing equipment for incoming material testing, including: automatic filter material meter, tensile tester, etc.