Do disposable medical masks have to be blue?
2020-11-14
Do disposable medical masks have to be blue?
Not necessarily
Everyone only needs to wear disposable medical masks to prevent the spread of droplets in the recent new type of pneumonia. Generally, the disposable medical masks we see are basically blue, but there are other colors. Some are blue on one side and white on the other side. There are also pure white, pure blue, green and other colors. Disposable masks refer to masks made of more than three layers of 28 grams of non-woven fabric.
Is the white medical mask divided into front and back?
Minute.
Generally speaking, the side with the lanyard belongs to the inner side and should face the face; there are other ways to distinguish:
First, the mask is divided into three layers, the upper and lower layers of non-woven fabric and the middle layer of filter material, the three layers of cloth are connected by ultrasonic welding, and the mask has an indispensable component-the bridge of the nose, these three layers The cloth wraps the nose bridge strip directly above the mask body in a certain order;
Finally, the front and back of the mask can be distinguished based on the principle that the face of the mask is flat and smooth, and the bridge of the nose above the mask is slightly convex while facing outward.
How long can disposable medical masks be worn?
It is recommended not to exceed 4 hours
Medical disposable masks are not recommended to be worn for a long time. It is generally recommended to replace them every 2-4 hours. If the disposable masks have been worn for too long, more than 4 hours, a large amount of particles in the air will be absorbed on the outside of the masks. As a result, blocking the gap of the filter material of the mask will not only reduce the filtration efficiency of the mask, but also increase the respiratory resistance. Over time, it will affect the human nasal mucosa and reduce the original physiological function of the nasal cavity.
But now in a special period, some experts suggest that if you have not been to a high-risk area, you can continue to use the mask after spraying 75% alcohol.
When wearing a mask, the fogging of the glasses is very disturbing.
PTFE nano film masks do not have this problem. In addition to efficient dehumidification, the adjustable nose clip and the special-shaped sponge strip make the mask fit tightly, and moisture will not leak from above, thereby avoiding fogging of the glasses.
Healthy fabric, 0 fluorescent agent, anti-allergic and skin-friendly, will not cause damage to the skin.
3D three-dimensional cropping can fit the face well and leave breathing space.
Not necessarily
Everyone only needs to wear disposable medical masks to prevent the spread of droplets in the recent new type of pneumonia. Generally, the disposable medical masks we see are basically blue, but there are other colors. Some are blue on one side and white on the other side. There are also pure white, pure blue, green and other colors. Disposable masks refer to masks made of more than three layers of 28 grams of non-woven fabric.
Is the white medical mask divided into front and back?
Minute.
Generally speaking, the side with the lanyard belongs to the inner side and should face the face; there are other ways to distinguish:
First, the mask is divided into three layers, the upper and lower layers of non-woven fabric and the middle layer of filter material, the three layers of cloth are connected by ultrasonic welding, and the mask has an indispensable component-the bridge of the nose, these three layers The cloth wraps the nose bridge strip directly above the mask body in a certain order;
Finally, the front and back of the mask can be distinguished based on the principle that the face of the mask is flat and smooth, and the bridge of the nose above the mask is slightly convex while facing outward.
How long can disposable medical masks be worn?
It is recommended not to exceed 4 hours
Medical disposable masks are not recommended to be worn for a long time. It is generally recommended to replace them every 2-4 hours. If the disposable masks have been worn for too long, more than 4 hours, a large amount of particles in the air will be absorbed on the outside of the masks. As a result, blocking the gap of the filter material of the mask will not only reduce the filtration efficiency of the mask, but also increase the respiratory resistance. Over time, it will affect the human nasal mucosa and reduce the original physiological function of the nasal cavity.
But now in a special period, some experts suggest that if you have not been to a high-risk area, you can continue to use the mask after spraying 75% alcohol.
When wearing a mask, the fogging of the glasses is very disturbing.
PTFE nano film masks do not have this problem. In addition to efficient dehumidification, the adjustable nose clip and the special-shaped sponge strip make the mask fit tightly, and moisture will not leak from above, thereby avoiding fogging of the glasses.
Healthy fabric, 0 fluorescent agent, anti-allergic and skin-friendly, will not cause damage to the skin.
3D three-dimensional cropping can fit the face well and leave breathing space.