Hospitals are looking themselves how to fill the gap while supply of PPE comes back. Here's a an example of a tutorial for masks made using readily available tools: https://enmed.tamu.edu/diymasks/

There are many other tutorials online from various sources which use different machines (sewing machine, 3d printers, etc), so people can improvise based on what they have.

The PDF shows detailed price breakdown for materials of ~$5/mask and estimates 10 minutes per mask, since of course it's diy, there's a lot of warning labels, but it's better than nothing. If people can produce ~40 masks per day using basic tools, this can scale based on the availability of raw materials and tools.