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: 30.04.2026
Report code: 1777539194

Medwelt 7F-5B Oxygen Concentrator Analysis Report

Device Identification

The images show a medical device inside its original cardboard packaging. Based on the illustrations and text on the packaging, it is understood that this device is an oxygen concentrator equipped with wheels, a digital display, and a flow meter.

Brand and Model Information

Upon examination of the front and side surfaces of the box, the brand and model information were clearly identified. The product brand is Medwelt, and the model is 7F-5B. This information is consistently displayed in large print and on technical labels on the box.

Usage Areas and Purpose

The device is designed to provide high-concentration oxygen to patients by filtering nitrogen from the ambient air. It is suitable for use in healthcare facilities or home environments for conditions requiring oxygen therapy, such as respiratory failure or COPD. The phrase “With nebulizing function” on the box indicates that the device also has the capability to perform medication nebulization (aerosol therapy).

General Condition and Physical Deformation

The product is contained within its original factory packaging. The cardboard box maintains its integrity. Slight friction marks and minor dents resulting from storage or transport are visible on the corners and surfaces of the box. The top of the box is sealed with transparent packing tape. The overall condition of the packaging is good. As the device itself is inside the box, no direct comment can be made regarding its physical condition.

Accessories and Parts

Since the device is packaged, the accessories inside (cannula, humidifier bottle, filters, etc.) could not be visually confirmed. There is a handle cutout on the side of the box to facilitate transport. The illustration on the box shows that the device has four wheels.

Labels and Technical Information

There are labels containing detailed technical information on the side surface of the box. The following data were read from these labels:

• Model: 7F-5B
• Serial Number (SN): 24041800944
• Lot Number (LOT): JR240418
• Power Supply: 220V~, 50Hz
• Input Power: 400VA
• Oxygen Flow: 1-5 L/min
• Oxygen Concentration: 87% – 95.5% (at 5 L/min flow)
• Quantity (QTY): 1 piece
• Gross Weight (G.W.): 26 kg
• Box Dimensions (Size): 53 x 34.5 x 66 cm
• Transport and Storage Temperature: -20°C ~ +60°C
• Relative Humidity Range: 10% ~ 93% (non-condensing)
• Atmospheric Pressure: 700hPa ~ 1060hPa
• Place of Production: China (Made in P.R.C)

The label also features the CE 0123 mark, the IP21 protection class symbol, and the medical device (MD) designation. The production date (MFG.Date) fields are left blank; however, the “2404” digits in the serial number and lot number indicate that the device was manufactured in April 2024.

Potential Failure Risk

Given that the product is packaged in the images and there is no significant damage (tearing, water damage, etc.) on the box, it is assessed that the device is in good condition and does not carry any potential risk of failure.