Secondhand Respirox SZ-5BW 5L/min Oxygen Concentrator

Objective AI Report

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Report date: 05.03.2026

RespiroX SZ-5BW Oxygen Concentrator Analysis Report

Device Identification

The device in the examined images is a medical oxygen concentrator that separates oxygen from ambient air and provides high-concentration oxygen to the patient. The device is wheeled and designed for stationary (home-type) use. Its front panel features an integrated humidifier slot and a flow control flow meter.

Brand and Model

Based on the examination of the silkscreen prints on the product, front panel writings, and the rear label, the device’s brand has been identified as RespiroX, and its model as SZ-5BW. This information is confirmed by the “RespiroX” logo and the phrase “Oxygen concentrator SZ-5BW” below it on the front panel; and by the “Model: SZ-5BW” inscription on the rear information label. A check with internet databases shows that the model information is consistent with the images.

Originality

The device’s outer casing, control panel layout, screen type, and label formats (CE 0123 mark, serial number barcode structure) comply with industrial standards and original RespiroX manufacturing details. No inconsistencies indicating aftermarket or copy production have been detected.

Areas of Use

RespiroX SZ-5BW is used to provide long-term oxygen therapy for patients suffering from chronic obstructive pulmonary disease (COPD), asthma, or respiratory failure. The device is suitable for use in home care services, nursing homes, or clinical environments. Furthermore, the “Nebulizing interface” outlet located on the front panel also allows for drug nebulization for patients.

Quantity Information

A total of 1 oxygen concentrator device is visible in the images. As accessories, 2 humidifier water bottles are seen (one attached to the device’s slot, the other resting externally on the device).

General Condition

The device is in second-hand (used) condition. The body integrity is preserved. No signs of severe damage have been found. The external cosmetic condition is generally clean.

Physical Deformation

• Control Panel: The protective transparent gelatin covering the button group (Run/Stop) on the left side of the screen is observed to be peeled and worn. This indicates that the device has been actively used before. Fingerprint smudges are present on the panel.
• Outer Casing: There are no noticeable deep scratches, cracks, breaks, or discoloration (yellowing) on the device’s white and gray plastic casing.
• Side Panels: There is no significant blockage or damage to the air intake grilles on the sides.

Mechanical Components

The device’s top carrying handle appears sturdy. The flow meter adjustment knob on the front panel is in place and physically undamaged. The metal cap of the nebulization outlet is present. The water container holder rubber or belt assembly is present in the front slot. Although the condition of the wheels cannot be clearly discerned from the images, there is no issue with the device’s stable stance.

Electronic Components

The device features a digital LCD screen on its front face. LED indicators for “Power”, “I/O”, an exclamation mark within a triangle (fault/warning), and a bell (alarm) icon are present. Although there is peeling on the coatings of the buttons (Timing+, Timing-, Run/Stop), the buttons are physically in place. The power switch (On/Off switch) on the rear is in good condition.

Accessories

• Humidifier Bottles: Two humidifier bottles are displayed with the device. One is attached to the device’s front slot with its hose connected. The other, with a black cap and a hose inlet on top, is placed on the device. No yellowing or cracks are visible on the bottles.
• Power Cable: A black power cable is present emerging from the back of the device and is coiled haphazardly. No significant kinks or cuts have been detected on the cable.
• Missing Items: Nasal cannulas or nebulization sets (mask, tubing) are not visible in the images.

Battery Status

This device model (SZ-5BW) operates with mains electricity (AC 220V); it does not have a factory-installed internal battery operating feature. Therefore, a battery status assessment is not applicable.

Label Information

The data read from the silver-colored product label on the back of the device is as follows:

• Product Type: Oxygen Concentrator
• Model: SZ-5BW
• Serial Number (SN): KB210012790 (Code located under the barcode)
• Certification: CE 0123 (Compliance with Medical Device Regulation)
• Warning Label: On the upper part of the device, there are icons and texts containing warnings such as “read manual before use”, “keep away from fire”, “do not smoke”, and “do not use oil/grease”.

Screen Analysis

Since the device is off (screen blank) in the images, analysis of screen content, total operating hours, or any error codes could not be performed.

Size and Compatibility

The device is of standard dimensions for adult-type oxygen therapy. For pediatric use, a flow-reducing adapter or a special flow meter may be required, as the existing flow meter has a range of 0-5 Liters/minute. It has a vertical, compact design suitable for placement in a home environment.

Year of Manufacture

The “21” indication in the serial number (KB210012790) provides a strong sign that the device was manufactured in 2021. Although the detailed date field on the label cannot be fully read due to visual resolution, SN coding typically contains this information.

Usage Duration

Since the device’s screen is off, the total operating hours (total run hours) cannot be viewed. However, the worn protective gelatin on the front panel suggests that the device has been actively used for a certain period.

Potential Malfunction Risk

No physical signs, such as structural breaks or rust, that would directly pose a significant malfunction risk have been observed on the device. However, the power cable being tightly coiled at the back of the device should be checked for internal cable breaks. Furthermore, as it is a used device with a humidifier, the possibility of clogged filters may necessitate maintenance.