Disposable medical masks expired can still be used
Can not be used for medical use, but can be used to shade, wind or dust.
The composition of disposable masks is mainly fiber, so it can not be cleaned, and can not be recycled, wearing a disposable mask is conducive to respiratory health, and generally disposable medical masks have a shelf life of two years, when you buy and buy to see the production date and shelf life.
How long do you wear a disposable medical mask
The disposable mask is usually replaced in 8 hours.
If the disposable mask is wet by the exhaled hot air or saliva, its role in blocking germs will be greatly reduced. Therefore, it is usually best to have a few more masks for replacement use, which should be changed and washed once a day.
Tips: disposable masks tend to accumulate a lot of dust in the outside air, bacteria and other dirt in the outer layer, while the inner layer of the bacteria, saliva blocking the exhaled, so the two sides can not be used alternately, or will be stained with dirt in the outer layer of the face directly close to the inhalation of human body, and become a source of infection.
Can disposable masks be reused
Disposable masks cannot be reused.
Used for a long time, because large particles are blocked in the mask surface or ultra-fine particles blocked in the gap in the mask filter material, and cause the filtering effect and breathing resistance rise, if used many times, the outer layer of the mask tends to accumulate a lot of dust in the outside world, bacteria, viruses and other dirt in the air, many times use is also prone to mix up the front and back, the outside of the microdust and germs into the human body, jeopardizing the health of the body. The newest addition to the lineup is a new, more compact design.
How to wear a disposable mask
1. The mask has a white and blue two sides, the white side of the face in, there are metal strips on the side of the face up, first of all, will be under the two straps tied to the back of the neck, and pull tight! Make the lower edge of the mask reach the base of your chin.
2. Pull up the top edge of the mask's straps to cover your mouth and nose, and pull the top two lacing straps behind your ears and over your head to fasten them, not over your ears.
3. Use the index fingers of both hands to press the metal wire on the upper side of the mask at the root of the nose, so that it is close to the skin of the nose, and then gradually move the index fingers to both sides, is the whole mask close to the facial skin.