Secondhand Foras OXY500 5L/min Oxygen Concentrator

Objective AI Report

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Report date: 07.01.2026

Analysis Report for For AS OXY500 Oxygen Concentrator

Device Identification

The device shown in the visuals is a portable oxygen concentrator used for medical purposes, which filters ambient air to produce high-density oxygen. It has been identified that the device is designed in a vertical form, with a carrying handle and a humidifier water tank compartment on the upper part, and a digital display and a manual adjustment knob on its front.

Brand and Model

As a result of a detailed examination of the product’s front face, the following information has been identified with 100% certainty:

• Brand: For AS (Logo is stylized with the text “For” and the letters “AS” in an oval)
• Model: OXY500

In the visuals, the brand and model information is clearly legible on the device’s front panel. The brand name “For AS” is located on the left side, and the model number “OXY500” is on the right side of the control knob.

Areas of Use

This device is designed for patients suffering from COPD (Chronic Obstructive Pulmonary Disease), respiratory failure, or those who require supplemental oxygen therapy. It is suitable for home use and for patient care in healthcare facilities. It aims to provide oxygen with a purity of 90% or more to the patient by taking in ambient air and separating nitrogen. Flow control in liters can be achieved via the adjustment knob on the device.

General Condition and Originality

Based on visual inspection, the device appears to be in a second-hand and used condition. The logo, model name prints, and panel quality on the product indicate that it is an original For AS production. There are superficial dirt marks on the device’s outer casing due to use, but the body integrity has been preserved.

Screen Analysis and Operating Status

The blue LED-illuminated digital display on the device’s front panel is observed to be active. It has been determined that the screen shows different values in various visuals:

• Instant Flow Indicator: Values showing the flow rate are readable on the screen along with the “L” symbol (values such as 2.1 L, 3.0 L, and 3.2 L are seen in the visuals).
• Time/Counter Information: In the upper left corner, there is a “00000” indication, likely representing total operating hours or counter information. In the middle part of the screen, variable numerical data such as 26, 46, 79 are seen; these data could be an instant timer or purity indicator.
• Icons: On the right side of the screen, the Power symbol light is observed to be on and active.

Mechanical and Physical Components

The device’s outer casing is made of white hard plastic. The physical details are as follows:

• Control Knob: On the front face of the device, there is a circular, rotatable potentiometer (adjustment knob) used to regulate oxygen flow. Around the knob, there are “-” and “+” symbols along with “5 L”, “0 L” texts indicating that adjustments can be made between 0 L and 5 L.
• Body Condition: Black scuff marks and slight dirt are present on the lower parts of the body and side panels due to use. However, no deep cracks or breaks have been detected on the casing.
• Wheels: Some of the black wheels providing mobility are visible at the base of the device.
• Warning Signs: In the lower right of the front panel, a “No Smoking” warning label is affixed within a red circle. This safety warning is critical as oxygen is a flammable substance.

Accessories and Missing Parts

Beyond the main unit required for the device’s operation, the following details have been observed in the visuals:

• Humidifier Bottle: In the first visual, the upper part of a humidifier water bottle, placed in a special compartment at the back of the device, is visible.
• Oxygen Outlet Port: On the upper left side of the device, there is a metallic-colored outlet (cannula inlet) where the oxygen hose would be attached.
• Hose/Cannula: In the second and third visuals, a transparent hose attached to the device’s outlet port is seen. This indicates that patient connection to the device can be made.

Existing Fault and Risk Analysis

There is no concrete evidence from the visuals to suggest that the device is “faulty” (e.g., error code on screen, broken part, etc.). The screen lights are on, and the numbers are legible. However, the following situations should be noted:

• Potential Risks: The area where the ventilation grilles are located at the bottom of the device appears susceptible to dust accumulation, although it cannot be fully discerned from the visuals. Filter and ventilation cleaning are vital in oxygen concentrators. Since the device is used, the condition of the internal filters is unknown.
• Cosmetic Risks: The dirt and marks on the casing are cleanable, and there appears to be no physical damage that would affect the structural integrity of the device.

Quantity Information

The quantity of the product analyzed in the visuals is 1 (one). Frames taken from different angles belong to the same device.