What is life of this system?
Ans: 
Airsep Oxygen Generators lasts longer. Airsep Oxygen Generators are working continuously from last 24 years in other countries. The main component in generator is Zeolite molecular sieves which last for 20 years if every year CMC is taken .so if the feed air quality always meets recommended standards, the sieve can last indefinitely (20 years or more!) One can change it and use again. So life is indefinite.