公开(公告)号：US20230158343A1

公开(公告)日：2023-05-25

申请号：US17989647

申请日：2022-11-17

Applicant: Purdue Research Foundation

Inventor： Helber Antonio Esquivel-Puentes ,  Tanya Purwar ,  Venkatesh Pulletikurthi ,  Luciano Castillo ,  Ernest Rowland Blatchley ,  Victor Castano

IPC: A62B18/02 ,  B01D39/20 ,  B01D39/16 ,  A62B23/02

CPC classification number: A62B18/025 ,  A62B23/025 ,  B01D39/1623 ,  B01D39/2041 ,  B01D2239/065 ,  B01D2239/0428 ,  B01D2239/0442 ,  B01D2239/0464 ,  B01D2239/0478 ,  B01D2239/0618 ,  B01D2239/1291

Abstract: A mask assembly comprising a face covering portion, a pocket connected to the face portion and positioned to cover a wearer’s nose and mouth, where in a filter is removably inserted into the pocket, the filter comprising a porous hydrophobic and lipophobic layer, a diamond - like carbon coated copper layer, and a non- woven fabric layer. A filter containing at least one porous hydrophobic and lipophobic layer, at least one diamond like carbon coated copper layer interposed between two non-woven fabric layers, and at least one additional non- woven fabric layer. A filter comprising at least one porous hydrophobic and lipophobic layer, at least one diamond - like carbon coated copper layer, and at least one non - woven fabric layer, the at least diamond-like carbon coated layer is between the at least one porous hydrophobic and lipophobic layer and at least one non - woven fabric layer.