The EverFlo Q with OPI is an affordable, quiet and durable oxygen concentrator. The Q stands for Quiet, and this oxygen concentrator runs at an ultra-quiet 40 decibels. OPI stands for Oxygen Percentage Indicator. The OPI feature is a light on the machine that illuminates and an alarm that sounds when the OPI level deviates from the physician's initial setting.
The EverFlo Q has all the same features as the original EverFlo, but the Q model is even quieter than the original!
120 VAC +/- 10%
Average Power Consumption
Oxygen Concentration* (at 5 LPM)
93% (+/- 3%)
0.5-5 liters per minute
31 lbs (14 kg)
45 dBA typical
23 in (584 mm) H x 15 in (381 mm) W x 9.5 in (241 mm) D
OPI (Oxygen Percentage Indicator) Alarm Levels
Low Oxygen: 82% Very Low Oxygen: 70%
55°F to 90°F (12°C to 32°C)
-30°F to 160°F (-34°C to 71°C) up to 95% relative humidity
up to 95% relative humidity
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