Secondhand Longfian JAY-5 5L/min Oxygen Concentrator

Objective AI Report

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Report date: 11.08.2025

Longfian JAY-5 Oxygen Concentrator Analysis Report

Overview and Device Description

The product shown in the images is one Longfian JAY-5 model oxygen concentrator. This device is designed to provide the user with high-concentration oxygen by separating nitrogen from the ambient air. It is a medical device suitable for use in home or clinical settings by individuals requiring respiratory support. In the images, in addition to the device, its original cardboard box and one humidifier bottle are present.

Physical State and Condition Assessment

The overall condition of the device is very good and it appears new. No significant scratches, dents, cracks, or discoloration have been observed. Only slight dustiness is present. The brand logo, control panel text, and labels on the device are clear and legible, which reinforces the impression that the product is original. The device’s original cardboard box is present, with a tear in the handle area on the top and slight general wear.

Analysis of Mechanical and Electronic Components

The device’s casing, plastic components, and the buttons on the control panel are visually in perfect condition. The flowmeter and humidifier chamber on the front panel appear to be intact. The electronic components of the device consist of an LCD screen and status indicator lights. The screen is off as the device was not operational at the time the images were taken. The control panel includes timer adjustment buttons such as “Timer +” and “Timer -,” as well as a “Dark Light” function button. Furthermore, the following warning lights are available for conditions that may arise during operation:

• P.F.: Power Failure
• L.P.: Low Pressure
• H.P.: High Pressure
• H.T.: High Temperature
• H.O.: High Oxygen

Accessories and Package Contents

The following items accompanying the device have been identified in the images:

• Humidifier Bottle: 1 unit, attached to its slot on the front section of the device.
• Original Cardboard Box: 1 unit, containing information on transport and storage conditions.

No other accessories, such as a power cable or oxygen cannula, are visible in the images.

Label and Certificate Information

The labels on the product, its box, and the quality certificate contain important technical information and codes. This information is listed below:

• Brand: Longfian
• Model: JAY-5
• Serial Number: MZJSS637750 (Indicated on the quality certificate)
• CE Certificate: CE 0197 (Indicated on the box)
• Quality Control Date: 16-03-2024
• Net Weight: 27 KG (Marked on the box)
• Gross Weight: 29 KG (Marked on the box)
• Dimensions: 435x435x640mm (Indicated on the box)
• Storage Conditions:
  • Temperature: -40°C ~ 55°C
  • Humidity: ≤95%
  • Pressure: 700-1060hPa

A “Quality Certificate” is present in the images. This document contains the product name, serial number, and the date it passed quality control. No other documents, such as an invoice or warranty certificate, are available.

Malfunction Status and Potential Risks

Based on visual inspection, no existing malfunctions or damages (e.g., breaks, cracks, error messages) have been identified on the device itself. The physical condition of the device is near-new, indicating a low probability of malfunction risk in the short term. The tear on the device’s box is only a cosmetic defect related to the packaging and does not affect the product’s operation. Overall, the device is in a well-preserved and maintained condition.