JANA ZIMOVA, owner, Company Respilon, face mask, with copper oxides

JANA ZIMOVA, owner, Company Respilon, face mask, with copper oxides

Respilon company representative Jana Zimova gives a briefing in Czech Technology Park, where company plans manufacturing lines capable of producing 100,000 nanoparticle respirators and face masks capable of protecting against the novel coronavirus, in Brno, Czech Republic, April 8, 2020. (CTK Photo/Vaclav Salek)

JANA ZIMOVA, owner, Company Respilon, face mask, with copper oxides

JANA ZIMOVA, owner, Company Respilon, face mask, with copper oxides

Respilon company representative Jana Zimova gives a briefing in Czech Technology Park, where company plans manufacturing lines capable of producing 100,000 nanoparticle respirators and face masks capable of protecting against the novel coronavirus, in Brno, Czech Republic, April 8, 2020. (CTK Photo/Vaclav Salek)

JANA ZIMOVA, owner, Company Respilon, face mask, with copper oxides

JANA ZIMOVA, owner, Company Respilon, face mask, with copper oxides

Respilon company representative Jana Zimova gives a briefing in Czech Technology Park, where company plans manufacturing lines capable of producing 100,000 nanoparticle respirators and face masks capable of protecting against the novel coronavirus, in Brno, Czech Republic, April 8, 2020. (CTK Photo/Vaclav Salek)

JANA ZIMOVA, owner, Company Respilon, face mask, with copper oxides

JANA ZIMOVA, owner, Company Respilon, face mask, with copper oxides

Respilon company representative Jana Zimova gives a briefing in Czech Technology Park, where company plans manufacturing lines capable of producing 100,000 nanoparticle respirators and face masks capable of protecting against the novel coronavirus, in Brno, Czech Republic, April 8, 2020. (CTK Photo/Vaclav Salek)

JANA ZIMOVA, owner, Company Respilon, face mask, with copper oxides

JANA ZIMOVA, owner, Company Respilon, face mask, with copper oxides

Respilon company gives press conference on new Virus Killer antiviral face mask in Brno, Czech Republic, March 17, 2020. (CTK Photo/Vaclav Salek)

JANA ZIMOVA, owner, Company Respilon, face mask, with copper oxides

JANA ZIMOVA, owner, Company Respilon, face mask, with copper oxides

Respilon company gives press conference on new Virus Killer antiviral face mask in Brno, Czech Republic, March 17, 2020. (CTK Photo/Vaclav Salek)

JANA ZIMOVA, owner, Company Respilon, face mask, with copper oxides

JANA ZIMOVA, owner, Company Respilon, face mask, with copper oxides

Respilon company gives press conference on new Virus Killer antiviral face mask in Brno, Czech Republic, March 17, 2020. (CTK Photo/Vaclav Salek)

JANA ZIMOVA, owner, Company Respilon, face mask, with copper oxides

JANA ZIMOVA, owner, Company Respilon, face mask, with copper oxides

Respilon company gives press conference on new Virus Killer antiviral face mask in Brno, Czech Republic, March 17, 2020. (CTK Photo/Vaclav Salek)

JANA ZIMOVA, owner, Company Respilon, face mask, with copper oxides

JANA ZIMOVA, owner, Company Respilon, face mask, with copper oxides

Respilon company gives press conference on new Virus Killer antiviral face mask in Brno, Czech Republic, March 17, 2020. (CTK Photo/Vaclav Salek)

Jana Zimova, Protective Facemask ReSpimask

Jana Zimova, Protective Facemask ReSpimask

Respilon Group co-owner Jana Zimova presents Protective Facemask ReSpimask at a press conference on effective nanotechnologic prevention against coronavirus infection in connection with current situation in China held by Czech Nanotechnology Industry Association and Respilon Group in Brno, Czech Republic, on Thursday, January 29, 2019. (CTK Photo/Vaclav Salek)

Jana Zimova, Protective Facemask ReSpimask

Jana Zimova, Protective Facemask ReSpimask

Respilon Group co-owner Jana Zimova presents Protective Facemask ReSpimask at a press conference on effective nanotechnologic prevention against coronavirus infection in connection with current situation in China held by Czech Nanotechnology Industry Association and Respilon Group in Brno, Czech Republic, on Thursday, January 29, 2019. (CTK Photo/Vaclav Salek)