I think that the fear was of a mask shortage. Infected quarantined > Potentially Infected COVID-19 contacts wearing masks > Uninfected wearing masks.
Are they so high tech you can't just ramp up production? And how many months in advance would you need to ramp it up? We're about 3 months in and nobody got the idea to increase production of masks until about a week ago (similar for hand sanitizer, soaps etc)? What am I missing, why is that a thing?
I read about a hand sanitiser manufacturer ramping up in the UK; by increasing hours, not throughput. And obviously to increase hours you need more staff, training, and maybe to review some policies, local bylaws, and other procedural stuff.