Make sure you keep your Inogen Rove 6 portable concentrator working at peak performance by replacing the sieve beds (columns) on a regular basis. The easy-to-remove and install Columns are a quick and simple way to service your Rove 6 at home, without the need for a repair shop.  Replacement Columns are sold as a pair, and should be replaced at the same time.  The column contains the sieve bed which converts room air into a high concentration of portable oxygen.
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