Omicron is surging.  Teachers once again find themselves on the front line. 

Each district across the US is implementing different rules.

Read: Palm Beach County school teachers return to work with new mask mandate 

So, which masks should teachers being using to protect themselves?

We learned that fabric masks cannot be trusted.  Read: Why Cloth Masks Might Not Be Enough as Omicron Spreads

The best masks are N95, KN-95, or KF-94.  

All block at least 94% of particles. While N95, blocks 95% and is Niosh Certified, the KN is a certified mask to Korean Standards, the KF-94 is a certified to Korean standards for 94% and a different type of style mask.

Here are links to all three on the

N95: One Mask

N95 Pack of 50

KN-95 Pack of 10

KN-95 Pack of 20