Min. Order Reference FOB Price
5000 Pieces US$0.56-0.62 / Piece
Product Description
Product Description 1.Oxygen Concentration adjustable Mask with only two diluter for seven concentration of 24%,26%,28%,30%,35%,40% and 50% 2.Easy adjustable, variable venturi system ensures fixed &accurate concentrations of oxygen 3.Medium concentration diluter allows settings of approximately ...