Yes, the DYOTA Silver ION Washable Face Mask is constructed with 3 layers of advanced materials, ultrasonic welded and has been tested by a 3rd party laboratory for Breathability, Washability (after 20 washes the Mask has 99% concentration of Q.A.S. & SILVADUR™ remaining) and Filtration (above the 70% target for Washable Masks).