The government of Ireland have been moving to encourage people in the Republic to wear face coverings in public. They also provide a how to guide and pattern.
Pattern in the New York Times where all Covid-coverage is free.
Free pattern and instructions from Irish Farmers Journal
Instructions from Kathleen McDermott NYU dept of Engineering
DIY crochet mask pattern free usage published on Medium
This no-sew pattern from in the Guardian Newspaper with story.
Pattern published via Instructables for fabric sewn mask
Free pattern from research scientist who loves sewing
Deaconess Hospital Group in US seeking donations.
A collection of patterns and incredibly wide array of facemask styles from embroidery to crochet to printed fabric to types of fabric collected via Pinterest