| Name | Face Mask |
| Material | Outside: non-woven fabrics
Middle:Meltblown Inside:non-woven fabrics |
| Type | C-shaped head strap |
| Package | Color box packaging |
| Specifications | 11cm*16cm-4P,white |
| MOQ | 100 BOX |
| Quantity | 20 pcs / box |
| Stock | Yes |
| Shelf Life | 2 years |
| Quality Certification | TUV |
| Safety standard | EN14683 |
| Instrument classification | Class II |
Masks are a kind of sanitary and anti-epidemic products. Generally, they are worn on the mouth and nose to filter the air entering the mouth and nose to block harmful gases, odors, droplets, viruses and other substances. They are made of gauze or paper and other materials. . Masks have a certain filtering effect on the air entering the lungs. Wearing masks has a very good effect when working in a polluted environment such as dust when respiratory infectious diseases are prevalent. Masks can be divided into air filter masks and air supply masks. Masks are divided into medical masks, non-medical masks, and civilian sanitary masks. The dust blocking efficiency of the mask is based on its blocking efficiency against fine dust, especially respiratory dust below 2.5 microns. Because dust of this particle size can directly enter the alveoli, it has the greatest impact on human health. The dust blocking principle of gauze masks is mechanical filtration, that is, when the dust collides with the gauze, some large particles of dust are blocked in the sand cloth through layers of barriers. For some fine dust, especially dust smaller than 2.5 microns, it will pass through the mesh of the gauze and enter the respiratory system. Dust masks are composed of activated carbon fiber felt pads or non-woven fabrics, and those respirable dust smaller than 2.5 microns are blocked in the process of passing through this filter material, which plays the role of filtering air.
The anti-side leakage design of the mask is to prevent the air from being inhaled through the gap between the mask and the human face without being inhaled through filtering. Air is like water flow, where there is less resistance, it flows first. When the shape of the mask does not fit closely with the face, the dangerous substances in the air will leak in from the non-contact and enter the respiratory tract of the person. So, even if you choose a mask with the best filter material. Nor can your health be guaranteed. Many foreign regulations and standards stipulate that workers should regularly test the tightness of masks. The purpose is to ensure that workers choose the right size mask and wear the mask according to the correct steps. For the filter material of a good protective mask, the following three conditions should be met: one is that the filtration efficiency is high when the mask is in good contact with the user’s face, the second is that the breathing resistance is small, and the third is that the user feels comfortable. There are various materials for the filter material of dust masks, including ordinary fabrics, animal hair, non-woven fabrics, etc. Very popular on the national standard is an activated carbon felt material.
