Each mask is supplied in a individual sealed pack
 
The nasal cannula consists of a flexible tube that is placed under the nose. The tube includes two prongs that go inside the nostrils
 
The medium Concentration mask provides low level oxyegn delivery via a clear face mask with a strap to secure this to the patients face
 
The Non Rebreathing Mask, "Trauma Mask", provides a high concentration of oxygen and the reservoir bag allows for adequate oxygen to be available to meet the unpredicted patient's breathing pattern and tidal volume.