"Efficient Separation of Oxygen from Nitrogen: Innovative Methods and Technologies" This comprehensive review explores advanced techniques and state-of-the-art technologies for the efficient separation of oxygen from nitrogen. It delves into innovative methods such as membrane separation, pressure swing adsorption, and cryogenic distillation, highlighting their principles, advantages, and applications. The discussion also covers recent advancements and future trends in the field, providing valuable insights for researchers and industry professionals seeking to optimize gas separation processes.