COVID KILLER
Good to hear from you..
Still inventing and living on Jigidi as ICeng..
Secluded because doctors tell me the alien introduced virus would kill me !!
So I designed a .......... Covid KILLER ............ Serious :-))
EE types should have no difficulty in producing breathers like the page plan..
Text on my image should explain what to do.
You will have to move enough air to keep a positive pressure in the helmet through inhales..
And balance battery against heating and then cooling air.. Cooling can use ambient air heat transfer by a heatsink keeping Virus free air separate..
Supplies
You will need a Thermoelectric Peltier Module
https://www.goldmine-elec-products.com/prodinfo.asp?number=G23986