What should Josef do next?

My ideas are listed below. 1>Plastic frame to hold face mask material similar to FiT design. I am betting filter material will be solved. https://fit.technology/nichtohnemaske.php 2>Non-return exhale valve for face masks to reduce CO2 buildup. I think this could be made of plastic printed frame and rubber sheet https://images.app.goo.gl/BDuLpAHyXsZzzf39A 3>Non-return exhale duck bill valve for masks http://www.minivalve.com/newsite/index.php/en/by-type/duckbill-valves/how-they-work https://www.amazon.com/dp/B07TJRDB36/ref=cm_sw_em_r_mt_dp_U_CTIQEbBZF77PX 4>Other plastic parts for face masks or respirator https://github.com/nasa-jpl/COVID-19-respirators 5>Fittings for an office desk shield that can be filled with clear plastic sheet similar to airline seat shield concept https://www.fastcompany.com/90496843/flying-after-covid-19-will-never-be-the-same-heres-what-airplane-seats-could-look-like 6>No more washing hands! A hand extension device with a clean end and a dirty end to move contaminated items this would be like Nintendo Ultra Hand or a grabber/reacher https://en.wikipedia.org/wiki/Ultra_Hand https://www.amazon.com/dp/B07T3HTBD9/ref=cm_sw_em_r_mt_dp_U_69IQEbSQMEY9C

Another idea is personalisation for PPE. I have seen lots of images of medical professionals with their names written on PPE. Cute/interesting printed name badges that can be sterilised may have a place.