How OXY99 works? Oxygen is our primary source of energy and is responsible for 90% of the brain and body functions OXY99 instantly increases the oxygen levels in the body and helps restore the brain and body functions to normal. By inhaling just 3 to 5 short bursts , OXY99 helps to recover from conditions resulting in low oxygen levels in the body. Usage: Take 3 to 5 inhalations per application or as required. Always administer oxygen to children under supervision of an adult.