Secondhand Oxylife JAY-3 3L/min Oxygen Concentrator

Objective AI Report

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Report date: 01.12.2025

Detailed Analysis Report of Oxygen Concentrator

Device Identification and Description

The product examined in the visuals is a medical device used for respiratory support, powered by mains electricity. Its design, flow meter, and control panel structure identify it as a standard type home oxygen concentrator. The device is designed to take in ambient air, separate nitrogen, and produce high-purity oxygen.

Brand and Model Information

A detailed examination of the visuals shows the phrase “OXYGEN CONCENTRATOR” and a logo on the front bottom part of the device. However, since a specific manufacturer brand name (e.g., Yuwell, Philips, Respirox, etc.) that would provide 100% certainty is not clearly and legibly present, the brand has been evaluated as “Undefined / Generic Brand” to avoid speculative information. The product’s casing structure shows characteristic similarities with 5-liter models known in the market as the “7F-5” series, but since the model name is not clearly legible on the label, a definitive model has not been specified.

Areas of Use

This device is used for long-term oxygen therapy (LTOT) in a home environment for patients suffering from COPD (Chronic Obstructive Pulmonary Disease), pulmonary fibrosis, or low oxygen saturation. It is suitable for providing respiratory support in hospitals or home care services. The wheels on the device allow for easy portability within a room.

Screen Analysis and Operating Data

The device’s LCD screen is active and presents important technical data. The current values on the screen are as follows:

• O.P. MPa (Operating Pressure): 0.103 MPa (Indicates that the system is operating at an appropriate pressure).
• O.C. V/V (Oxygen Concentration): 94.5%. This value proves that the device’s current operating performance is excellent and that it can produce very high-purity oxygen (Standard values are generally between 90%-96%).
• O.Time (Current Operating Time): 0000 hours 04 minutes (Time elapsed since the device was last turned on).
• Acc.Time (Total Service Life): 0001306 hours. The device has been used for a total of 1306 hours. Considering that the motor life of such devices is generally 15,000-20,000 hours, the device is still at the beginning of its life and can be classified as “lightly used”.
• Status Indicators: On the LED panel below the screen, the “P.O.” (Power On) light is green. This indicates that the device is receiving power and has started operating.

Physical Condition and Deformation Analysis

The following observations have been made regarding the device’s general casing and external appearance:

• Cosmetic Condition: On the device’s outer casing, especially on the front, around the warning labels, and on the bottom parts, there are friction-related stains and black marks. Usage marks are evident on the cream-colored plastic casing, which requires cleaning.
• Screen Surface: In the second visual, intense wrinkles and wear are observed on the screen. However, upon careful examination, it is understood that this condition is not due to the screen itself but rather because the factory-applied protective gelatin (transparent film) has not yet been removed. The screen beneath the protective film is very likely clean.
• Control Panel: The gelatins on the buttons are also present and have deformed over time. No broken or missing parts are observed on the physical buttons.

Mechanical Components and Accessories

Parts and mechanical condition analysis in the visual:

• Flow Meter: On the left side of the device, there is a manual flow meter adjustable from 0 to 5 Liters/Minute. The indicator ball is currently at the lowest level (zero point).
• Wheels: The device’s left front wheel is visible, indicating a mobility system is present.
• Cable: A black electric cable is seen next to the device.
• Oxygen Outlet Port: The metal-tipped oxygen outlet port (barb connector) appears sturdy on the top part of the device.

Missing Parts and Accessories

ATTENTION: The slot designated for the “Humidifier Water Bottle”, which provides humidified oxygen to the patient, is empty on the front of the device. The black elastic band used to secure the water bottle is present, but the bottle itself is not in the visual. The user will need to acquire an external humidifier water bottle to use this device.

Warning and Label Information

The English warnings under the “CAUTION” heading on the front of the device state the following:

• 1. Read the instruction manual before operation.
• 2. Non-professionals are forbidden from opening the machine casing.
• 3. Clean the intake air filter every 100 hours.
• 4. Clean the secondary filter every 300 hours.
• 5. Oxygen purity is 93% ±3% at the specified flow rate.
• 6. Smoking and approaching with open flames are prohibited. Do not use oil or grease (Flammable in contact with oxygen).

Quantity Information

The visuals show 1 unit of oxygen concentrator device.

Overall Condition and Fault Risk Assessment

The 94.5% oxygen purity value on the device’s screen proves that the “Molecular Sieve” (Sieve Bed) system and the compressor, which are the most critical components, are currently operating very healthily. Despite appearing physically dirty and worn (cosmetic flaws), the technical data indicates that the device’s functional condition is high. No fault codes or warning lights are displayed on the screen. Other than the missing humidifier bottle, no visible mechanical breakage (cracked casing, severed cable, etc.) that would impede usage has been detected.