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How Long Can Kids KN95 Masks Be Used?
Aug
The WHO has not made a clear conclusion on the best wearing time of Kids KN95 masks, and the United States has not yet made relevant regulations on the use time of masks.
Some researchers have done relevant research on the protection efficiency and wearing time of KN95 kids protective masks.
The results showed that after wearing the KN95 mask for 2 days, the filtration efficiency remained above 95%, and the respiratory resistance did not change much; the filtration efficiency decreased to 94.7% after wearing it for 3 days.
The advice given by the US CDC is that when there is no sufficient supply of masks, as long as the equipment is not obviously soiled or damaged (such as creases or tears), it can be considered for reuse.
When the following situations occur, the kids kn95 mask should be replaced in time:
1. When the respiratory impedance increases significantly.
2. When the kids kn95 mask is broken or damaged.
3. When the kids kn95 mask and the face cannot be closely attached.
4. The child kn95 mask is contaminated (for example, when it is stained with foreign objects such as blood stains or droplets).
5. It has been used in individual wards or in contact with patients (because the kids kn95 mask has been contaminated).
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Precautions for wearing kids KN95 mask:
1. Wash your hands before wearing a youth kn95 mask, or avoid touching the inner side of the mask while wearing a mask to reduce the possibility of contamination of the mask.
2. Separate the inside, outside, top and bottom of the mask; the KN95 kids mask has the printed side as the outside; one end of the metal strip/sponge strip is above the mask.
3. Do not squeeze the mask with your hands, including child KN95 masks, which can only isolate the virus on the surface of the mask. If you squeeze the mask with your hands, the virus will wet the mask with the droplets, and there is still a chance of infection.
4. Make sure that the KN95 mask for kids fits well with the face as much as possible. The simple test method is: After putting on the mask, exhale forcefully so that the air cannot leak from the edge of the mask.
