Venturi Mask Made of clear,medical grade PVC Two color coded diluters for seven concentrations Green diluter for 24%,26%,28%,30%White diluter for 35%,40%,50% Adjustable nose clip Cat. No. Type LB121001 S,Standard child,2m oxygen tubing LB121002 M,Elongated child,2m oxygen tubing LB121003 L,Adult Asia,2m oxygen tubing LB121004 L+,Adult Europe,2m oxygen tubing LB121005 XL,Elongated adult,2m oxygen tubing
