Secondhand Philips Respironics Everflo Oxygen Concentrator Flowmeter

Objective AI Report

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Report date: 28.01.2026

Panel Type Oxygen Flowmeter (Debimeter) Analysis Report

Device Identification

The product in the image is a flowmeter (debimeter) unit designed to measure and regulate gas flow, complying with medical and industrial standards. The product is not a standalone electronic device but a mechanical component designed as part of a larger system (e.g., an oxygen concentrator or an ozone generator). Its transparent body and scale indicate that it operates on the “Rotameter” principle.

Brand and Model

A detailed examination of the product body, knob structure, and connection points revealed no identifiable brand, logo, model number, or manufacturer’s distinctive mark. Such components are typically OEM (Original Equipment Manufacturer) parts produced to industrial standards, having a universal structure that allows them to be used as spare parts in devices of various brands. Therefore, no specific brand name has been reported.

Measurement Scale and Technical Data

Upon examining the black graduation lines etched onto the transparent acrylic block, the following technical details have been identified:

• Measurement Unit: The inscription “LPM O2” is located at the bottom of the body. This indicates that the device is calibrated to measure Oxygen gas flow in Liters Per Minute (LPM).
• Measurement Range: The scale features numbered levels from 1 to 5. This confirms that the device can control and measure flow in the range of 0 to 5 LPM.
• Operating Principle: A black spherical float (ball) is visible at the very bottom of the tube. When gas flow is provided, this ball moves upwards, indicating the current flow rate.

Areas of Use and Compatibility

This component is designed for systems where flow adjustment needs to be done manually. Its rear connection screws and structure indicate that it is suitable for panel mounting. Potential areas of use include:

• Home or portable oxygen concentrators.
• Oxygen supply control in ozone generators.
• Anesthesia machines or veterinary gas equipment (for low-flow requirements).
• Laboratory-type gas mixing setups.

Mechanical Components and Physical Structure

The product’s physical structure consists of durable materials:

• Body: Made from a single piece of highly clear, transparent acrylic or similar hard plastic. This structure allows the position of the internal ball to be easily seen from all angles.
• Adjustment Knob (Valve): At the top, there is a black, knurled manual valve knob used for opening/closing the flow and making fine adjustments. A metallic screw detail is visible in the center of the knob.
• Connection Points: At the rear of the device, there are two metal extensions with hexagonal nuts required for panel mounting. Additionally, white plastic hose barb fittings are present for gas inlet and outlet.

Quantity Information

Only 1 unit of the flowmeter (debimeter) is present in the image. No other parts or accessories are visible.

Overall Condition and Status

Upon examination of the product via the image, it is observed to be in unused (new) or near-new condition. A detailed condition analysis is as follows:

• Physical Deformations: No yellowing, cracks, dulling, or scratches are found on the transparent body. The inscriptions and scale lines are clear and unerased.
• Cosmetic Condition: No signs of rust or oxidation were found on the metal nuts. No usage-related dirt or deformation is visible on the white plastic hose inlets.
• Mechanical Condition: The adjustment knob and body integrity are sound. No missing parts or broken components have been identified.

Originality and Workmanship

Although there is no brand label on the product, its manufacturing quality (absence of burrs, neatness of inscriptions, material clarity) indicates industrial production conforming to standards. While such parts are often sold as unbranded spare parts, they appear to be functionally compliant with standards.

Conclusion

The product displayed is a flowmeter calibrated for oxygen gas, suitable for panel type mounting, with a manual valve and a 0-5 LPM measurement range. Its excellent physical condition suggests that the product is new or has never been actively used. It is suitable for use as a spare part for medical or industrial devices operating with oxygen.