staples has Disposable Earloop Face Mask, Blue, 50/Box for $9.99

https://www.staples.com/disposabl…t_24448175
About this product
Disposable non-sterile blue 3-ply masks intended for general single use with nonwoven fabric and melt blown polypropylene construction.
50 masks per box
Disposable non-sterile mask intended for general single use
3-Ply
Elastic earloop
Adjustable nose clip offers a comfortable, secure fit
Adult; one size fits most
Blue
6.89" x 3.74"
These masks are not medical grade and are not intended for medical use. They are not suitable for use in a surgical setting or where there would be significant exposure to liquid bodily or other hazardous fluids, use in a clinical setting, or use in the presence of a high-intensity heat source or flammable gas.