There's no need to wash your filters constantly - get an additional set!


Set of four (4) 35% wool National Non-woven felt filters that fit the Premium Fabric Face Masks sold on this site. Choose Adult (large) or Child (Small). Random colors.

Set of 4 Felt Filters

  • Refund and Return Policy

    Sorry, but due to the nature of the item and the current pandemic, no returns or refunds will be accepted on this item.

© 2020 by Agency 3 Thirteen. All Rights Reserved.

Premium fabric washable and reusable face masks handmade in Boulder County, Colorado

by a healthy, reasonably sane family! We are fortunate to be stocked with lots of craft supplies

thanks to a love of crafting (and because we used to own a craft store). :)