Smiths Medical First Breath� Nasal Cannula & Oxygen Therapy Masks Case 002610 by Smiths Medical ASD GROUP: Respiratory & Oxygen:Oxygen :Masks Item Description: Adult Venturi Mask with Flexible Tube, Full Set of Color-Coded Oxygen Diluters (24%, 28%, 31%, 35%, 40%, 50%), 7 ft Tubing Humidification Cup, 50/Case Packaging Desc: Mask Therapy Venturi Adult W/Flexible Tube 50/Case Country of Origin: Harmonized Tariff Code: Product Description: