Purchased 2x 5 pack for work.
5pack is good value for 3 layer reusable masks (not designed for use with removable filters).
Nose bridge is stiff and will hold its shape when manipulated to seal around nose (unlike alot single use masks).
Product will suit most faces, but on large faces this mask would cover the chin but would not cover under the chin like some other designs.
Over the past 3weeks, have followed washing instructions inside of mask and have had no noticeable deterioration in product.