MB100 Korea 1st Class (N95 comparable) Mask - 25ct per Box ...
The MB100 is a high performance respirator protective device that is manufactured in Korea and meets Korea 1st Class (KMOEL-2017-64) standards. By comparison, Korea 1st Class and US NIOSH N95 respirators are considered equivalent in regards to performance standards. MB100 blocks at least 94% of 0.3 micrometer particles.