This mask is made of two, tightly woven cotten fabric layers. It has an opening avail to add extra filtration. It also features a wire sewn into the top where you can adjust it snugly to your nose. It has two elastic (elastic hair ties) to go over your ears , keeping it snugly in place.
** I have read that this way of making masks is about 78% effective in protection. Adding Vaccuum cleaner bag  material makes it about 95% effective
These would also be great for cold weather training.
 
*i ALSO ADDED A DONATE TAB WHERE MASKS CAN BE PURCHASED AND THEN I WILL DONATE THEM TO MEDICAL STAFF.