Secondhand Medwelt 7F-5B 5L/min Oxygen Concentrator

Objective AI Report

Disclaimer: I am Medbidding AI. I am an unbiased AI robot. I have generated the following report automatically (without human intervention). The report was prepared by examining only the product images in the ad in detail. The report may contain errors. Medbidding and other parties disclaim any liability that may arise from this report or reliance on its contents. If you have any questions or notice an error in the report, please contact Medbidding engineers.

Report date: 30.01.2026

Medwelt 7F-5B Oxygen Concentrator Analysis Report

Device Identification

The device in the examined visuals is an electric oxygen concentrator used for medical purposes. This device is medical equipment that takes ambient air, separates other gases like nitrogen, and provides high-concentration pure oxygen to the user. The device is described as a vertical, wheeled, and mobile unit.

Brand and Model

The logo, label, and model number texts on the visuals have been examined in detail, and the product’s identity has been determined with 100% certainty:

• Brand: Medwelt
• Model: 7F-5B

The model number “7F-5B” is clearly legible on the lower front part of the device, and the “Medwelt” brand logo is clearly visible in the middle part and in the humidifier water tank area.

Originality

Considering the print quality of the logos on the device, the neatness of the markings in the “Flow Meter” section, the professional arrangement of the English and Turkish warning labels on the top cover, and the material craftsmanship, the product is assessed to be an original Medwelt production.

Areas of Use

This device is designed to provide oxygen support to patients with COPD (Chronic Obstructive Pulmonary Disease), respiratory failure, or those requiring continuous oxygen therapy, in home or clinical settings. The oxygen support provided by the device can be adjusted up to a maximum of 5 liters per minute, as indicated by its flow meter.

Quantity Information

The visuals show 1 main oxygen concentrator unit and 1 attached humidifier water tank.

General Condition

The device is used but appears to be in good and clean overall condition. Water droplets visible inside the humidifier water tank clearly indicate that the device has been used recently or in the past. The device’s outer casing appears sturdy and does not show significant signs of wear.

Physical Deformations

Upon detailed examination of the device’s white outer plastic casing:

• No noticeable deep scratches, dents, or cracks have been detected on the front, side, and rear panels.
• No excessive yellowing or signs of sun damage are visible in the color of the plastic components.
• No cracks are visible in the transparent water reservoir.

Mechanical Components

The condition of the mechanical parts according to the visuals is as follows:

• Wheels: The black swivel wheels located underneath the device are intact and in place.
• Flow Adjustment Knob: The “Flow Meter” adjustment knob (regulator knob) on the upper right is intact.
• Lid Mechanism: The control panel and storage compartment lid on the upper part are openable, and the hinge structure appears sturdy.

Electronic Components

Although it is not possible to see the device operating (with the screen on) from the visuals, the physical integrity of the electronic components has been preserved:

• No cracks or blackening are visible on the surface of the LCD screen on the top panel.
• The panel buttons (+, -, I/O switch) are complete and clean.

Accessories

The accessories identified on the device are as follows:

• Humidifier Water Tank: It is attached to the front compartment of the device. This transparent plastic reservoir with a black lid is intact. Traces of moisture/water vapor are present inside.
• Power Cable: The power cable connection is visible in the visual showing the rear side of the device (in the form of a black spiral cable).
• Missing Accessories: The visuals do not show a nasal cannula (nose tube) or mask, which provide oxygen delivery to the patient. The buyer will need to procure these parts separately.

Battery Status

This model (Medwelt 7F-5B) is a device that typically operates with mains electricity (AC). The feature of operating with an internal battery is generally not found in these models. There is no indication of battery use (such as a charging light) in the visuals.

Label and Control Panel Information

The following technical details and warnings are present on the device’s label and panels:

• Panel Display: The inscriptions “COUNTS (hours)” and “TIMING (minutes)” indicate the screen’s functions.
• Flow Indicator: A transparent tube graduated from 0 to 5 (L/min) is present. The flow ball (black sphere) is at the “0” level, which confirms the device is off.
• Safety Warnings: Under the “Warning: Risk of Fire” / “Uyarı: Yangın Riski” heading on the label located under the top cover, it is stated that smoking is prohibited and open flames should be avoided.
• Capacity Limits: The “MAX” (Maximum) water level line is clearly visible on the humidifier bottle.

Dimensions and Compatibility

The device is of standard home-type oxygen concentrator dimensions. The 5 liters/minute oxygen flow capacity is a range considered standard for most adult patient treatments.

Usage Duration

Since the LCD screen is off (not powered), the “COUNTS” information regarding the device’s total operating hours cannot be read. However, the water traces in the humidifier tank confirm that the device has been used.

Potential Malfunction Risk

During the visual inspection, no deformation or corrosion was observed in critical parts of the device (casing, sockets, screen, water tank), thus the risk of a malfunction due to physical condition appears low. Only periodic maintenance of the humidifier tank’s seals and filters (located under the rear or side cover, which is closed in the visual) may be required. No crushing or breakage of cables has been observed.