Ihe ngwungwu Bowie & Dick bụ ngwaọrụ eji eme otu ihe nke nwere akara kemịkalụ na-enweghị ndu, mpempe ule BD, etinyere n'etiti mpempe akwụkwọ nwere porous, nke ejiri akwụkwọ crepe kechie, yana akara ngosi uzuoku n'elu pf ngwugwu.A na-eji ya nwalee mwepụ ikuku na arụ ọrụ ntinye uzuoku na sterilizer agụụ uzuoku.