Which direction does the blue face of the medical mask face? Under normal circumstances, the blue one should be outside and the white one should be inside. This is an established rule in the medical industry. Masks, like clothes, are reverse-designed, and wearing white outside will be uncomfortable.
In addition, the white one is not as stain-resistant as the blue one, so it is also considered to design the exterior as blue. The part close to the human respiratory system is white, and the fabric has not been dyed, which is safer.
Is it a hard mask above or a metal mask below?
Masks must be of the right size and worn correctly to be effective. Masks sold in the market are generally divided into rectangular and cup-shaped ones. Rectangular masks must have at least three layers of paper structure to play a protective role.
The user has to press the metal wire on the mask on the bridge of the nose, and then spread the whole mask along the bridge of the nose to play its role. Children can wear a rectangular surgical mask because it has no fixed shape. If it is well tied, it can be glued to the child's face.
A cup-shaped mask is effective only if it is tightly attached to the face and the exhaled air does not leak out. When wearing a cup-shaped mask, you can cover the mask with your hand and try to blow it to check whether there is air leakage at the edge of the mask. If the mask cover is not tight, it should be reset before wearing it.
Correct wearing steps of medical blue mask:
1. Confirm the positive and negative, unfold the mask, and the light side touches the nose and mouth.
2. Make sure that the top and bottom of the metal strip are facing up. This metal strip is the "nose clip", which is used to fix the shape of the nose, fit the face, prevent the top from leaking, and prevent the exhaled hot air from fogging the glasses.
3. Hang your ears to cover your face, adjust them up and down, and open the rubber band to hang them on your ears. After the mask is covered, hang the rubber band on your ear. If it is a surgical mask with a tie, the sealing effect of the lace-up mask will be better if the knot is tied behind the head.
4. Adjust the nose clip, adjust the bottom, and adjust the ear hook to make it closer.
Which color is safer for disposable masks? It is generally recommended to choose white.
Ordinary qualified disposable medical masks are generally white and made of non-woven fabrics. Generally, it is divided into three layers. The middle layer is the filter layer, which has good air permeability and filter layer, so it is safer and cleaner. Some people think that the thicker the smog mask, the better. In fact, this is not correct. Wearing a thick anti-fog mask for a long time will make the nasal mucosa fragile and lose the original physiological function of the nasal cavity, which may lead to other diseases. Wearing a thin anti-fog mask will reduce the effect of filtering germs and dirt in the air, moisturizing and keeping warm.