What is the difference between N95 and KN95 masks? How is it different from medical masks? Expert explanation is coming
Wearing masks has recently become everyone's daily posture, and the most concerned at present, in addition to ordinary disposable medical masks, are the N95 and KN95 masks with the highest roll rate. What are the differences between N95 and KN95 masks?
According to a recent report by domestic media, Zhu Renyi, director of the Disinfection Department of the Shanghai Center for Disease Control and Prevention, introduced that KN95 masks are our country ’s masks for filtering particles (more than or equal to 95%), and N95 masks are American tests (standard) , But the code name is different.
KN95 masks and N95 masks are actually the same in terms of particle filtration efficiency. However, it should be noted that medical masks for medical personnel, especially for direct contact with new coronary pneumonia, is one of the N95, but not all N95 masks are medical protective masks.
Zhu Renyi said that the medical masks we wear may touch the patient, and the patient may sneeze or cough, and there may be some splashes, or when the patient is intubated, there may be some splashes. "General particle masks cannot stop this splash."
He also mentioned that the mask worn by medical staff may be worn for 4 hours a day. When wearing a mask to breathe, there will be water vapor in the mouth and the mask will be wet. In addition to the filtration efficiency of particulate matter, medical protective masks must perform synthetic blood penetration experiments and moisture resistance experiments.
Therefore, to determine whether a mask can be used by first-line medical staff depends on whether these three experiments have been done.