New not worn high grade 3m face masks. If you have ventured to your post office perhaps you have seen the government pamphlet that instructs for ready-ness for a "airborn junk" attack. Hey... having some on hand might do wonders in a emergency.
Second use...extreme cold to lungs and just filtering out crud while being outdoors.
These have two elastic rubber draw bands that hold the element well over the face area. There is a built nose clip that you can squeeze to provide a semi holder over your nose. I don' t know how well these filter however not having one on hand these days might not be a grand idea.
