A safety alarm warns if there is an interruption in power. Usually ships the next business day. A safety alarm warns if there is an interruption in power. Usually ships the next business day. The Companion 590 reliably provides oxygen at flows of less than 1 Lpm up to 5 Lpm.
All models have an alarm system, which warms of low pressure or power failures.
The OCI also monitors the condition of the pre-filter. The Companion 590 oxygen concentrator requires very little maintenance. The service life of the compressor is extended due to the effective filtration system. The filters are easily accessed and changed without opening the oxygen concentrator cabinet. When further maintenance is warranted, the cabinet opens easily with the removal of two screws.