How do disposable medical masks look good?


Release time:

2024-03-14

Disposable medical masks are suitable for medical work environments, filtering particles and bacteria in the air, blocking droplets, blood, body fluids, secretions, etc. There are three sections for men, women and children. The main components of disposable medical masks are non-woven fabrics and melt-blown filter materials, and the filtering effect meets the KN95 standard.

Disposable medical masks are suitable for medical work environments, filtering particles and bacteria in the air, blocking droplets, blood, body fluids, secretions, etc. There are three sections for men, women and children. Disposable medical masks are mainly composed of non-woven fabrics and meltblown filter materials, and the filtering effect is in lineKN95 standard.

一次性医用口罩

Some unscrupulous traders will wantonly sell fake disposable medical masks.


How to tell whether disposable medical masks are good or bad? Here are some simple and easy ways to teach you.


Use packaging information to verify the authenticity of medical masks. For regular flat medical masks, the production license number of the product will be marked on the outer packaging. This is because medical masks, as medical devices, can only be produced by enterprises with production license numbers, which can be verified on the website of the Food and Drug Administration. In addition, the manufacturer's brand can also be used as an important reference for choosing masks. Some well-known brands can be viewed by scanning the QR code on the package. Non-professionals should buy from regular sources.


Do disposable medical masks contain meltblown nonwovens?


Meltblown cloth plays a key protective role in disposable medical masks. Due to their high prices and near-supply shortages, some fake masks have not been used. There are two ways to determine whether there is a meltblown cloth in a disposable medical mask:


1. Cut the disposable medical mask and observe that the middle layer meltblown cloth is located in the middle layer of the mask, and the structure is dense and white; however, the spunbond fabric has a relatively loose structure and high transparency. In addition, the strength of the meltblown cloth is very low and can be torn by hand. Spunbond cloth is high in strength and requires a lot of force to tear.


2. Direct observation of the appearance shows that the meltblown fabric is dense and almost opaque; many fake masks without meltblown cloth have high light transmittance, and the facial skin is faintly visible when worn.


Does disposable medical mask meltblown cloth have static electricity?


In order to breathe as smoothly as possible and meet the protection requirements, qualified meltblown cloth for disposable medical masks will go through the "electret process". The surface of the fiber standing behind the rod has a large amount of charge, intercepting fine particles through electrostatic adsorption. Therefore, it has obvious attraction to hair, iron filings, etc. Although the amount of meltblown cloth in a single mask is small, the effect of absorbing hair is not obvious, but the presence of charge can also make it adsorbed on the wall. Although some fake masks contain meltblown cloth, they do not pass through the electret, or because the technology is not up to standard and the storage time is too long, resulting in a large amount of charge loss, and their protective performance naturally does not meet the standard.


There are also a variety of homemade disposable medical masks, such as diapers, pomelo peel, towels and so on. What appears on the Internet is not recommended. Self-made disposable medical masks generally have poor air tightness and have not undergone strict disinfection testing, making it difficult to play a protective role. And the homemade process may be contaminated with bacteria or viruses.


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