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This replacement Column Pair (Sieve Beds) is designed for use with Inogen One G5 Portable Oxygen Concentrators. These removable metal columns contain sieve beds that convert noraml air into air with high oxygen concentration. Whenver the Inogen One G5 is in use, it must have a column pair installed.
Usage Information: These column pairs should be replaced every 12-24 months - or sooner depeding on operation conditions. The Inogen One G5 will alert you when it is time for them to be replaced.
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