Masks are slowly starting to enter people's lives now, and people are also aware of the importance of masks. With the understanding of masks, it is found that there are types of N95 and KN95, so what is the difference between the two?
The difference between mask N95 and KN95
The N95 mask is one of the nine anti-particulate masks certified by NIOSH in the United States. "N" means non-oily particles; "95" means that the filtration efficiency reaches 95% under the testing conditions specified by the NIOSH standard. As long as the products meet the N95 standard and pass the NIOSH review, they can be called "N95 masks". This is the American standard. KN95 is the classification of anti-particulate masks in China's national standard GB2626-2006. The national standard GB2626-2006 ("Respiratory Protective Equipment Self-Priming Filtering Anti-particulate Respirators"), which was implemented on August 1, 2009, divides dust masks into three Grades: KN90, KN95, KN100.
Precautions for wearing kn95 masks
1. Wash your hands before wearing the mask, or avoid touching the inner side of the mask with your hands during the process of wearing the mask to reduce the possibility of the mask being contaminated.
2. Distinguish the inside and outside, up and down of the mask; the KN95 mask with the printed side is the outside; one end of the metal strip/sponge strip is above the mask.
3. Do not squeeze the mask with your hands, including N95 masks, you can only isolate the virus on the surface of the mask. If you squeeze the mask with your hands, the virus will soak through the mask with the droplets, and there is still a chance to infect the virus.
4. Make sure that the mask has a good seal with the face as much as possible. The simple test method is: after wearing the mask, exhale forcefully, and the air cannot leak from the edge of the mask.
Can Kn95 masks prevent viruses?
KN95 is the domestic standard antivirus without problems. The biggest feature of the KN95 mask is that it can prevent droplet infection caused by the patient's body fluids or blood splashes. Droplets are 1 to 5 microns in diameter. Use of masks
1. Ordinary degreased gauze masks: antifreeze.
2. Disposable medical masks and medical surgical masks: block germs and physical particles, and can block droplets; doctors can wear them to reduce pollution to clean medical care (surgery area), and patients can wear less Or block airborne and droplet-borne diseases.
3. Medical protective masks: Prevent microbial aerosols and physical particles, can effectively block droplets containing pathogenic particles, and are mainly used to protect the wearer from being infected.
4. N95 masks: When contacting airborne diseases, medical staff need to wear N95 Medical protective masks above the level of masks can effectively protect yourself.