1. KN95 mask is actually a mask conforming to the GB2626 standard of China.
2. N95 mask is certified by American NIOSH, and the standard is non-oily particulate filtration efficiency ≥ 95%.
3. KN95 and N95 masks should be worn correctly.
4. If KN95 or N95 mask is normally used, one can be replaced within 4 hours.
5. Special circumstances require timely replacement.
Post time: Apr-15-2020
