Disposable masks can be divided into different categories according to different usage conditions. This is because the materials used to make disposable masks are different, the materials have different filtering effects on the air, and the response to the use environment will also be different. The filter material on the mask filters out dust particles or splash-type liquids brought by the wearer due to spontaneous breathing.
Because the mask is worn on the person's face, in order to improve the effect, the disposable mask is generally fitted to the face. Then when people inhale, the air pressure inside the mask becomes smaller, and then the air outside the mask is filtered through the filter material of the mask. harmful materials. When you exhale, the air pressure inside the mask increases, and then the gas is discharged to the outside through the mask.
Wearing a mask every day can prevent the inhalation of dust particles and viruses and bacteria, etc., which all rely on efficient filter materials to play their role. If the mask does not fit the face tightly, there may be leakage. Therefore, general disposable masks will have a shaping strip at the bridge of the nose, which can effectively fit the bridge of the nose and the space of the nose to form a three-dimensional structure, which is then combined with the headband. Form a whole space to fit on the face.
