Freshens up the inside of my mask
They are rather compressed and the first ones were hard to separate but now I can dissect one away without difficulty. They are odorless and seem to cover well the mouth/ nose of the inside of my KN 95 mask. I’m not using them for  virus protection but rather to freshen up my mask , as food odors , saliva, breath / speech give it an odor after awhile.<br />It helps to extend my mask life. Change the insert daily , get 7-10 days out of my mask.
Rating: 4 stars