Oxygen, what the body needs
                U.S. Air Force Senior Airman Nicholas McGinnis, 31st Logistics Readiness Squadron fixed facilities personnel, places a sample of liquid oxygen in a container, April 23, 2015, at Aviano Air Base, Italy. Every 90 days, petroleum, oil and lubricants Airmen inspect liquid oxygen tank locks for leaks and test the oxygen's purity. (U.S. Air Force photo by Senior Airman Matthew Lotz/Released)
                
                    
                        PHOTO BY:
                        Senior Airman Matthew LotzReleased 
                    
                    
                        VIRIN:
                        150423-F-AI558-245.JPG
                    
                    
                        FULL SIZE:
                        2.17 MB
                    
                 
                
                
                        
                        
                            
                                
                                    CAMERA 
                                    N/A
                                    LENS 
                                    N/A
                                    APERTURE
                                    N/A
                                 
                                
                             
                            No camera details available.
                         
                        
                            
                                IMAGE IS PUBLIC DOMAIN
                                
                                    Read More
                                
                                
                                    This photograph is considered public domain and has been cleared for release.
                                    If you would like to republish please give the photographer appropriate credit.
                                    Further, any commercial or non-commercial use of this photograph or any other
                                    DoD image must be made in compliance with guidance found at
                                    https://www.dimoc.mil/resources/limitations,
                                    which pertains to intellectual property restrictions (e.g., copyright and
                                    trademark, including the use of official emblems, insignia, names and slogans), warnings
                                    regarding use of images of identifiable personnel, appearance of endorsement, and related matters.