Are the columns something I can repair or do I need to send it in?

As Portable Oxygen Concentrators have gotten smaller, the sieve beds that help convert air into medical grade oxygen need to be replaced more often. For the Inogen family of products (Inogen One G3/G4/G5) , the sieve beds are easily replace at home. Refer to the vidoes below.

For other products such as the Respironics Simply Go, Respironics Simply Go Mini or Caire Comfort, it is required that the unit be sent in for sieve bed replacement.

How To Replace Inogen One G4 Columns

How To Replace Inogen One G3 Columns

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