Showing posts from June, 2020

Two masks with 750 thread count cotton

New stiffener design

Playing with the Argonne/Chicago fabric filtration data

40 masks donated

Upgrading the 13 layer chiffon and 7 layer satin masks

Changing from retainer to stiffener

Prototype clamp for holding layers together before first sew

4DflexiSPORT "Reusable Facemask, Respiratory Face Covering" review