Respironics Oxygen Enrichment Port for CPAP and BiPAPs BATT Replace sooner if the filter

Replace sooner if the filter is visibly soiled or if you live in a dusty environment

you should also use a pressure valve (sold separately) — it prevents oxygen from backflowing into the CPAP machine when it's turned off

AC Power Supply

Automatic temperature compensation as room conditions change

you need the G4/Rove 4 external battery charger

Respironics Oxygen Enrichment Port for CPAP and BiPAPs BATT Replace sooner if the filterwrapper fixed. 5. No product photo recommend adding one (a small connector is hard to visualize from text alone). ============================================================ > This oxygen connector lets you attach a supplemental oxygen supply to your CPAP, BiPAP, VPAP, or BiLevel machine. It fits between the CPAP tube and mask, working with any standard oxygen tubing. Who needs this connector? Patients prescribed both supplemental oxygen and CPAP