How To Distinguish The Front And Back Of A Mask

- Jul 29, 2020-

Masks are a kind of protective tool that plays a filtering role. The use of masks has a good protective effect on people. Generally, a multi-layer filter device is used in masks to filter out polluted gases and small particles in the air. , So as to better protect people's respiratory tract, make people's body safer and healthier, which also makes the use of masks more important. So how to distinguish the front and back of the mask? Let me teach you all below.

1. Medical mask

1. Look at the color

Generally, the front side (outward) of medical masks is darker in color, and the reverse side (outwardly) is lighter or white. When wearing, the darker side is facing outward, and the lighter color is the side that touches the face.

2. Look at the crease

The face of the medical mask with the crease facing down is the front side (outward), and the face with the crease facing up is the reverse side (outward).

3. Look at the metal strip of the nose clip

In addition to distinguishing the front and back of medical masks, it is also necessary to distinguish the top and bottom. The end of the metal strip with the nose clip (there is a relatively hard horizontal strip when touched by hand) is facing up, and vice versa.

Two, N95 mask

1. Look at the uneven surface

When the N95 mask is opened, the convex side is the front side (facing outward), and the concave side is the reverse side (facing inward).

2. Look at the metal strip of the nose clip

Compared with the relatively hidden metal strips of the nose clip for medical masks, the metal strips of the nose clip of the N95 mask are generally exposed. It can be seen that the side of the metal strip of the nose clip is the front side, and the side of the metal strip faces up.

3. Look at the headband orientation

The headband of the N95 mask is located on the front (facing outwards), and the headband will press against the edge of the mask when worn.

After reading the above description, I believe everyone has understood how to distinguish the front and back of a mask. Everyone must wear a mask in the correct orientation and method, so that the mask can be close to the face, more effectively block bacteria and viruses, and provide us with a better filtering effect.

Three, disposable masks

1. Look at the color

The darker side of the disposable mask is the front side, and the front side should be turned outward when wearing it, while the light-colored side is the back side, which will directly touch the face.

2. Look at the metal bar

The mask can be distinguished by the metal strip of the mask. Generally, the side of the metal strip on the top and protruding outward is facing outward.

3. Look at the crease

There will be many creases on the mask, the crease facing down is generally the outer layer, and the crease facing up is the inner layer.

4. Thread

Under normal circumstances, the side of the white flat mask with the thread is the outside, on the contrary, the side without the thread is the reverse side.

5. Smoothness

Because of the water-blocking function, the outer surface of the mask is mostly smooth, and the inner layer is mostly made of a material with good air permeability, which is close to the skin, which is good for breathing, is more delicate and comfortable.

After reading the above introduction, I believe everyone has understood how to distinguish the front and back of a mask. Everyone must wear a mask in the correct orientation and method, so that the mask can be close to the face, more effectively block bacteria and viruses, and provide us with a better filtering effect.