Sunset HCS CGA 870 Style Oxygen Regulator, 0 15 LPM geri chair; geri chairs; patient chair; reclining chair; recliner chair; recliner chairs; padded chairs; padded seats low tidal volume (AVAPS modes Size:Medium Frame Medium Wide Cushion low tidal volume (AVAPS modes only) Environmental Operating Storage Temperature 5° C to 35° C (41° F to 95° F) 20° C to 60° C ( 4° F to 140° F) Relative humidity 15 to 95% (non condensing) 15 to 95% (non condensing) Atmospheric pressure 101 kPa to 77 kPa (0 2286 m 0 7500 ft) N A Sound level < 30 dBA at 10 cm H20 pressure Electrical AC voltage source 100 to 240 VAC AC power supply and cord CGA 870 style valve connection for E size or smaller cylinders Oxygen flow regulators are intended for the administration of oxygen to patients who need increased oxygen levels to improve their breathing conditions