Inogen One G3 Replacement Column Pair ( Settings 1-5)

Sieve beds filter out the nitrogen from the air coming into the concentrator Air gets concentrated into oxygen after passing through the second filter-Malfunctioning sieve beds will not give the oxygen dosage needed to treat COPD or other diseases that affect the lungs Clear step-by-step instructions enable easy switching out of the column pair without tools-Cost efficient Dimensions: 2" W x 2" L x 5" H