Face masks are tested at the Politecnico and then put on the market in Milan, Italy, March 24, 2020. In the photo: checking the type of product . Photo by Simona Chioccia/IPA/ABACAPRESS.COM

Face masks are tested at the Politecnico and then put on the market in Milan, Italy, March 24, 2020. In the picture: . Photo by Simona Chioccia/IPA/ABACAPRESS.COM

Face masks are tested at the Politecnico and then put on the market in Milan, Italy, March 24, 2020. In the photo: Professor Alberto Guardone, head of the "Crealab" laboratory where the tests are performed . Photo by Simona Chioccia/IPA/ABACAPRESS.COM

Face masks are tested at the Politecnico and then put on the market in Milan, Italy, March 24, 2020. In the photo: evaluation of the finished product . Photo by Simona Chioccia/IPA/ABACAPRESS.COM

Face masks are tested at the Politecnico and then put on the market in Milan, Italy, March 24, 2020. In the photo: evaluation of the finished product . Photo by Simona Chioccia/IPA/ABACAPRESS.COM

Face masks are tested at the Politecnico and then put on the market in Milan, Italy, March 24, 2020. In the photo: Professor Alberto Guardone, head of the "Crealab" laboratory where the tests are performed . Photo by Simona Chioccia/IPA/ABACAPRESS.COM

Face masks are tested at the Politecnico and then put on the market in Milan, Italy, March 24, 2020. In the photo: Professor Alberto Guardone, shows the masks that have passed the test and will therefore be produced by Italian companies converted to the realization of these sanitary products . Photo by Simona Chioccia/IPA/ABACAPRESS.COM

Face masks are tested at the Politecnico and then put on the market in Milan, Italy, March 24, 2020. In the picture: . Photo by Simona Chioccia/IPA/ABACAPRESS.COM

Face masks are tested at the Politecnico and then put on the market in Milan, Italy, March 24, 2020. In the photo: Professor Alberto Guardone, during a test, the fabric is subjected to a strong and humid quantity of nitrogen-rich air to check the seal and perspiration . Photo by Simona Chioccia/IPA/ABACAPRESS.COM

Face masks are tested at the Politecnico and then put on the market in Milan, Italy, March 24, 2020. In the photo: suitable masks . Photo by Simona Chioccia/IPA/ABACAPRESS.COM

Face masks are tested at the Politecnico and then put on the market in Milan, Italy, March 24, 2020. In the photo: suitable masks . Photo by Simona Chioccia/IPA/ABACAPRESS.COM

Face masks are tested at the Politecnico and then put on the market in Milan, Italy, March 24, 2020. In the photo: evaluation of the finished product . Photo by Simona Chioccia/IPA/ABACAPRESS.COM

Face masks are tested at the Politecnico and then put on the market in Milan, Italy, March 24, 2020. In the photo: evaluation of the finished product . Photo by Simona Chioccia/IPA/ABACAPRESS.COM

Face masks are tested at the Politecnico and then put on the market in Milan, Italy, March 24, 2020. In the picture: . Photo by Simona Chioccia/IPA/ABACAPRESS.COM

Face masks are tested at the Politecnico and then put on the market in Milan, Italy, March 24, 2020. In the photo: Professor Alberto Guardone, during a test, the fabric is subjected to a strong and humid quantity of nitrogen-rich air to check the seal and perspiration . Photo by Simona Chioccia/IPA/ABACAPRESS.COM

Face masks are tested at the Politecnico and then put on the market in Milan, Italy, March 24, 2020. Pictured: data evaluation . Photo by Simona Chioccia/IPA/ABACAPRESS.COM