Even then, there weren't enough melt spinning machines in North America to make the necessary raw materials, and the lead time on new machines was too long to a

Even then, there weren't enough melt spinning machines in North America to make the necessary raw materials, and the lead time on new machines was too long to address the shortage in time to respond to the needs of a pandemic. https://www.cbsnews.com/news/n95-mask-shortage-melt-blown-filters/ https://www.cbsnews.com/news/n95-mask-shortage-melt-blown-fi...