■ Made of clear, medical grade PVC
■ With adjustable nose clip, elastic strap and latex free
■ Two color coded diluters for seven concentrations
■ Green diluter for 24%,26%,28%,30%,white diluter for 35%,40%,50%
■ Color: green transparent, white transparent and light blue transparent is available.
■ Length: with 2m tubing, different length can be customized
■ An it-crush tube can ensure oxygen follow even if the tube is kinked