RE: there are literally 1000's of co's making masks19 Nov 2020 18:55
Specialist masks for certain situations, NHS, care homes, police, cruise ships, airplanes etc. Where 1. The highest possible protection needed 2. For the longest possible time.
Doctors are currently churning through 1 mask every patient this would give them 7 hours of protection in one mask. These aren't cheap Chinese imports....