Ptfe Membrane Filter 4 LAYER OF PROTECTION KN95 (PFE>95%) Softer Inside The Inside Layer That Will Go Against Your Face Should Be Soft 100% Cotton. Adjustable Elastic Ear Loops Round Ear-worn Ears, but Very Comfortable, if the Feeling of Wearing is Too Large, You Can Tie the Ear String. Adjustable Nose Bridge Better Fit the Face and Firmer.
