With highly contagious Omicron variant, new infections and hospital admissions at record highs, public health experts say current masks may need to be upgraded.

      (source: CDC) President Biden said at the White House January 13 that the federal government will increase the supply of face masks to combat the spread of the Omicron strain in the United States. Then, on January 14, the U.S. Centers for Disease Control and Prevention -CDC-RRB-CDC) updated its guidelines for masks, recommending that people wear the more proU.S.ive u.s. sN95dard N95 Chinese chinese sKN95ard KN95. Wechat screenshot. PNG (source: U.S. Centers for Disease Control and prevention (CDC-RRB-)02 the joint prevention ControltMechanismnism of StatetDepartmentmentChinahina released a new edition of the guidelines for the public and key occupational groups to wear masks as earlyAugustgust 13 last year, the need for higher-grade protective masks in densely populated and high-risk settings was highlighted. So what is a higher-level protective mask? That is the medical protective mask. The medical protective mask is a kind of mask which is made of one or more kinds of fabrics which have the function of isolating virus aerosol, containing virus liquid, etc. , second, it can still act as a barrier to viral aerosols, viral liquids and other particles, and can filter non-oil particles with a efficiency of more than 95% , making it a common personal protective equipment against airborne diseases. Wechat screenshot. PNG (N95, KN95, the difference between medical protective masks)