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What is a non-woven mask?

There are two kinds of non-woven masks. One is made of pure cotton absorbent gauze or knitted fabric with various non-woven fabrics sandwiched between.

The other is sewn directly from nonwoven fabric.

Its filtration effect is good, breathable slightly poor, the latest varieties for the surface and back for non-woven material, the middle for the filter paper, so that the non-woven mask filtration effect of a higher level.

The relevant documents on the technical requirements of medical protective masks were issued by the General Administration of Quality Supervision, Inspection and Quarantine on April 29, 2003 and implemented on the same day.

Material: non-woven fabric.

Purpose: Filtering

Structural components

Non-woven masks are the most widely used category in our daily work.

The structure of a non-woven cloth mask should be divided into two parts. One is the main body of the mask, which can be simply understood as a shelf of the mask.

The other is the filter material part, including the filter cotton used for dustproof and chemical filter box used for poison prevention.

Therefore, for the selection of filter masks, some products of Guangjia provide you with the following convenience: you can use the same mask body, and when dust prevention is needed in the dust working environment, you can match it with the corresponding filter cotton, so that you can wear a dust prevention mask;

When it is necessary to prevent virus in a toxic environment, replace the filter cotton and install the corresponding chemical filter box, so that it becomes a respirator again, or according to your work needs, provide you with more combinations.

Selection principle

Folding dust resistance efficiency

The dust resistance efficiency of a non-woven mask is based on its barrier efficiency for fine dust, especially for respirable dust under 5 micrometers.

Because this size of dust can be directly into the alveoli, the impact on human health is the greatest.

General gauze mask, its dust resistance principle is mechanical filtering, is when dust collision into gauze, through - layer upon layer barrier, will be some large particles of dust in the sand.

However, some fine dust, especially those smaller than 5 microns, can pass through the mesh of the gauze and enter the respiratory system.

Now there are some dust masks abroad, the filter material is composed of fiber filled with permanent static electricity, those smaller than 5 microns of respirable dust in the process of passing through this filter material, attracted by static electricity and adsorption in the filter material to capture the fine dust, really play the role of dust resistance.

Degree of folding tightness

Air, like water flow, flows first where there is little resistance.

When the shape of a non-woven mask is not close to the face, air hazards will leak into the air and enter the respiratory tract.

So, even if you choose the filter material again good mask.

It doesn't protect your health.

Many foreign regulations and standards stipulate that workers should be regularly tested for the tightness of non-woven masks.

The purpose is to ensure that workers choose suitable non-woven masks and wear masks according to the correct procedures.

Wear comfortable

Require small respiratory resistance, light weight, wear sanitation, easy maintenance.

This way workers will be happy to stick with it in the workplace and improve their productivity.

There is no need to clean or replace the parts of the current maintenance-free masks. They are discarded when the dust is saturated or the masks are damaged, which not only ensures the hygiene of the non-woven masks, but also saves the time and energy for workers to maintain the masks.

In addition, many masks adopt the arched shape, which can not only ensure a good close fit with the face shape, but also keep a certain space in the non-woven cloth mask for comfort.

There is no clean

The outer layer of non-woven cloth mask is often accumulated a lot of dirt in the outside air, such as dust, bacteria, and the inner layer is blocking the exhaled bacteria, saliva, therefore, both sides cannot be used alternately, otherwise the contaminated outer layer will be directly close to the face when inhaled human body, and become a source of infection.

When not wearing a mask, fold it into a clean envelope and fold the face close to your nose and mouth. Do not put it in your pocket or hang it around your neck.

If a non-woven mask is wet with exhaled heat or saliva, its function of blocking germs will be greatly reduced.

Therefore, it is better to have several masks at ordinary times to replace them and wash them once a day.

Scald for 5 minutes before washing.

Non-woven masks should be cleaned and disinfected daily. Both gauze masks and air filter masks can be disinfected by heating.

The specific measures are as follows:

1. Cleaning.

First, gently rub gauze mask with warm water and soap, bowl mask can be dipped in a soft brush detergent gently brush clean, and then clean with clean water.

Please be careful not to rub vigorously, because if the gap between the warp and the weft is too large, the gauze will lose its anti - droplet effect.

2. Disinfection.

Soak the cleaned mask in 2% peracetic acid solution for 30 minutes or boil it in boiling water for 20 minutes or steam it in a steamer for 15 minutes, then let it dry and set aside.

This method is suitable for gauze masks and bowl masks.

3. Check.

Before use again, the mask and face mask should be carefully checked to see if they are still in good condition. For both gauze masks and face masks, the method of light transmission can be adopted, that is, take care of them in front of the light to see if there are any obvious spots of light. The transmission rate of the middle part is the same as that of the edge part.

In any case, masks and masks generally need to be updated after 3 to 7 washes, and a particularly good quality mask can be cleaned 10 times.

The activated carbon adsorption mask should pay attention to the regular replacement of the activated carbon sandwich. If the activated carbon sandwich is not replaceable, it should be replaced after 7 to 14 days. This kind of mask cannot be cleaned and reused.