This is a reusable fitted style mask with two layers of tight woven cotton Rattie Fabric. There is a pocket which can be used to insert a filter. It can be used without one.
 
Comes with elastic
 
Fits - Women and Teenagers
 
All of this is cotton (except for the cinches) and can be washed in hot water. Please wash in a delicates netted bag to keep it from wrapping around other laundry items.