From Wikipedia: The filtration efficiency of KN95 is equivalent to N95, so KN95 masks and N95 masks can replace each other.
N95 Safety Face Mask | NIOSH
5-Layer design | High-density non-woven fabric-nano filtration-N95 filtration-high-breathable non-woven fabric, the N95 Safety Mask can protect you from virus, dust, car exhaust, pollen, etc
Lightweight Design | Soft Comfort Foam | Adjustable Nose Clip | Adjustable Elastic Straps,the N95 Safety Mask create a secure seal for maximum protection
3D Ear Hanging and Lightweight Design make your breathing easier. High-quality Elastic Straps make it comfortable to wear for a long time, suitable for home and professional use, indoor or outdoor use
SHIPPING WITHIN 48 HOURS.
100% GENUINE GURANTEE