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Background and Identification
The DeVilbiss DeVo MC 44-90 is an oxygen concentrator sold by DeVilbiss, a company that produces healthcare products. An oxygen concentrator is a medical or industrial device that concentrates the oxygen from either ambient air or another gas supply. Oxygen concentrators selectively remove nitrogen and other gases from the air to provide an oxygen-enriched stream.
The DeVilbiss DeVo MC 44-90 oxygen concentrator is controlled by a microcomputer that uses a pressure-depressurization system to produce high concentrations of oxygen. When problems arise, users can often observe the machine’s pressure-depressurization cycle to identify problems. The machine’s indicator lights can also be used to identify a malfunctioning machine. An alert system will activate because of electrical or pneumatic component failure, power failure, or low system pressure.
When operating at an output rate of three liters per minute, the DeVilbiss DeVo MC 44-90 model produces air with a 95-percent oxygen concentration. At four liters per minute, the oxygen concentrator produces 80-percent-oxygen air. At five liters per minute, it outputs air with a 70-percent oxygen concentration.
The DeVilbiss DeVo MC 44-90 oxygen concentrator’s model name, “DeVO MC 44-90,” is printed in blue font on the front face of the machine. The device’s operating instructions are printed underneath the model name. An integrated flow meter is also included on the machine’s front face. The DeVilbiss DeVo MC 44-90 oxygen concentrator is typically contained in a black plastic housing. A plaque with identifying information is included on the back of the machine.
- 95% ± 3% oxygen concentration at 3 liters per minute
- 80% ± 3% at 4 liters per minute
- 70% ± 3% at 5 liters per minute