【概要描述】How to choose a mask
How to choose a mask
【概要描述】How to choose a mask
Dust suppression efficiency
The dust blocking efficiency of the mask is based on its blocking efficiency for fine dust, especially for respiratory dust below 2.5 microns. Because this size of dust can directly enter the alveoli, it has the greatest impact on human health.
纱布口罩，抑尘的原理是机械过滤，也就是说，当灰尘撞击纱布时，它会穿过屏障层，以阻挡沙布中的一些大颗粒灰尘。 对于一些细粉尘，尤其是小于2.5微米的粉尘，它将穿过纱布的网孔并进入呼吸系统。 防尘口罩由过滤材料，活性碳纤维毡垫或无纺布组成，那些小于2.5微米的透气性粉尘在通过该过滤材料的过程中被阻塞，起到过滤空气的作用。
Gauze masks, the principle of dust suppression is mechanical filtration, that is, when the dust hits the gauze, it passes through layers of barrier to block some large particles of dust in the sand cloth. For some fine dust, especially the 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 filter material activated carbon fiber felt pads or non-woven fabrics, and those breathable dusts smaller than 2.5 microns are blocked during the process of passing through this filter material and play the role of filtering air.
面罩的防渗漏设计旨在防止空气通过面罩与人脸之间的间隙被吸入，而无需考虑技术因素。 空气就像一股水流，首先流向阻力很小的地方。 当面罩的形状不接近面部时，空气中的危险物体将从非封闭的地方泄漏并进入人的呼吸道。 因此，即使您选择具有最佳过滤材料的口罩。 它也不能保护您的健康。 许多国外法规和标准规定工人应定期进行面膜附着力测试。 目的是确保工人选择合适尺寸的口罩，并按正确的步骤佩戴口罩。
The mask's anti-leakage design is to prevent air from being sucked through the gap between the mask and the human face without filtering through the technical considerations. Air is like a stream of water, where it flows first where there is little resistance. When the shape of the mask is not close to the face, the dangerous objects in the air will leak from the non-closed place and enter the airway of the person. So, even if you choose a mask with the best filter material. Nor can it protect your health. Many foreign regulations and standards stipulate that workers should regularly perform mask adhesion testing. The purpose is to ensure that workers choose a mask of the appropriate size and wear the mask in the correct steps.
Comfortable to wear
只有这样，工人才会愿意坚持在工作场所穿着并提高工作效率。 当前国外无需维护的口罩无需清洁或更换。 当防尘层饱和或面罩损坏时，将其丢弃。 这不仅保证了口罩的卫生，而且节省了工人维护口罩的时间和精力。 而且，许多口罩采用拱形形状，不仅可以确保与脸部形状的良好附着力，而且在口鼻处保留一定的空间，佩戴舒适。
Only in this way will workers be willing to insist on wearing in the workplace and improve their work efficiency. Current maintenance-free masks abroad do not need to be cleaned or replaced. When the dust barrier is saturated or the mask is damaged, it is discarded. This not only ensures the hygiene of the mask but also saves the time and effort of workers to maintain the mask. Moreover, many masks adopt an arched shape, which can not only ensure a good adhesion with the shape of the face, but also reserve a certain space at the mouth and nose, which is comfortable to wear.
People with heart or respiratory problems (such as asthma and emphysema), pregnancy, dizziness after wearing, difficulty breathing, and sensitive skin.
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