What is the difference between blue and black disposable masks - famous type IIR mask factory outlet

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Author : T&K
Update time : 2022-02-22 11:38:29

Spring is a period of high incidence of viruses. In order to protect your health and prevent viral infections, wearing a mask at any time when you go out is one of the measures that must be taken. However, there are so many masks on the market, and the colors alone are blue, black, white, etc. Respectively, I don’t know what is the difference between blue and black disposable masks. How to distinguish it?

 

What is the difference between blue and black disposable masks

There is no difference between blue and black disposable masks produced by regular manufacturers except for the difference in color. According to my country's "Disposable Medical Masks" reference standard: YT0969-2013, its medical disposable nursing masks are mainly blue, and there are also white, black, pink and pattern printing models. The shapes are flat and arched. As long as the masks are produced in compliance with the regulations, they have the functions of anti-virus, anti-odor, filter bacteria, and dust prevention. Apart from the difference in color, there is no difference in appearance or purpose.

 

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Black mask or blue mask is better

1. From the perspective of replacement experience, as long as the mask is dirty, it needs to be replaced immediately, otherwise it will lose its protective effect. However, the black mask has a darker color, even after wearing it for a long time, you can’t see the contaminants on the surface of the mask. I don’t know whether it is dirty or not. Dirty, and blue masks can clearly see whether there are contaminants. From the perspective of replacement experience, blue masks are better than black masks. 2. From the point of view of protective effect, generally disposable black masks and blue masks are three-layered, but there is a gray-black mask with an additional layer of activated carbon paper on the premise of the original three-layer non-woven filter paper, which is better It improves the ability to filter dust and bacteria and is called "four-layer activated carbon mask". Its protective effect is due to the ordinary three-layer blue mask. But there are also black masks made of cotton or sponge. This kind of mask only has the functions of dustproof and beautiful appearance, and does not have the ability to prevent viruses. The protective effect is not as good as the blue medical mask.

 

Are black masks a medical mask?

Uncertain. Whether a mask is a medical mask or not can not be judged by the color alone, but also according to the following points: 1. Look at the number of layers. Medical masks are generally three-layered, and the inner layer is made of skin-friendly material (ordinary sanitary gauze or non-woven fabric). The middle layer is an isolation filter layer (ultra-fine polypropylene fiber melt-blown material layer), and the outer layer is a special antibacterial layer (non-woven fabric or ultra-thin polypropylene melt-blown material layer). The ones with fewer layers are not medical masks. 2. Look at the process. The main production processes of medical masks include meltblown, spunbond, hot air or acupuncture, etc., which are equivalent to resisting liquids, filtering particles and bacteria. They are medical protective textiles that can be identified according to the outer packaging. 3. Look at the protective effect. Under the condition of air flow rate (85±2) L/min, the filtration efficiency of the medical mask on the median aerodynamic diameter (0.24±0.06) μm sodium chloride aerosol is not less than 95%, which is in line with N95 (or FFP2) and above. It can block airborne infectious agents with a diameter of <5μm or close contact with infectious agents transmitted by droplets. Disposable masks do not. This is also marked on the outer packaging of the mask.

 

Can disposable masks isolate the virus?

Not all disposable masks can isolate the virus. Disposable masks that can effectively isolate the virus are: disposable surgical masks and n95 masks, while ordinary disposable masks are less effective in isolating the virus, and ordinary cotton masks have no effect in isolating the virus. Therefore, if you buy a mask to isolate the virus, Use disposable surgical masks or n95 masks, and remember to replace them regularly. Normally, you need to replace them every 4 hours.

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