Secondhand Philips Respironics Remstar Auto A-Flex 551P AUTOCPAP Device

Objective AI Report

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Report date: 27.11.2025

Philips Respironics REMstar Auto A-Flex Sleep Apnea Device Analysis Report

Device Identification

The main product examined in the visuals is a positive airway pressure device used for medical purposes. The device consists of a body, control panel, and power adapter. A carrying bag, used for transporting the device, is also included in the set.

Brand and Model

As a result of detailed examinations on the front, top, and bottom label of the device, the brand and model information have been definitively identified.

• Brand: Philips Respironics
• Model: REMstar Auto A-Flex
• Model Reference Code (REF): 551P
• Series Description: The label also states “REMstar Auto, INTL”.

Originality

The brand logos (Philips Respironics) on the device, interface design, labeling standards (REF, SN, barcode, certification marks), and material quality indicate that the product is an original Philips Respironics production. No findings suggest it is an aftermarket or counterfeit product.

Areas of Use

This device is designed for use in the treatment of Sleep Apnea (OSAS). The device is a medical device that automatically adjusts the air pressure required to keep the patient’s airway open (Auto-CPAP/APAP). It is suitable for home care patients and clinical use. The product is a standalone air blower unit; it must be used with consumables such as a mask and air tubing.

Quantity Information

The total number of parts identified in the visuals is as follows:

• 1 unit Main Device (Philips Respironics REMstar Auto)
• 1 unit Power Adapter (with cables)
• 1 unit Carrying Bag

Total: 3 pieces.

General Condition

The device is in a used condition. It is observed that the device has power and the screen is working. Its physical condition exhibits superficial wear due to intensive use, but it maintains its integrity.

Physical Deformation

Upon careful examination of the device’s cosmetic condition, the following points are noteworthy:

• Front Panel/Screen: There are numerous distinct scratches on the transparent protective plastic panel covering the LCD screen. While these scratches do not affect screen readability, they indicate aesthetic wear.
• Case Cleanliness: Dust and dirt accumulations are observed around the control knob, in recesses, and at the seams of the casing. A detailed cleaning may be required.
• Side Panel: The white side panel on the right side of the device appears clean, but it should be considered that it may be prone to slight discoloration (yellowing) over time (no significant yellowing is visible in the current visual).

Mechanical Components

The device’s main control button (round wheel) and the triangular-symbol button beneath it appear physically intact. There are 4 rubber feet at the bottom of the device, which ensure its stable placement. No visible cracks or fractures have been detected in the power input and air outlet ports.

Electronic Components

It has been confirmed from the visuals that the device is operational:

• The blue backlight of the screen is active.
• Texts on the screen are clearly readable (without visible pixel errors).
• It is understood from the screen display that menu transitions are being made.

Accessories

• Power Adapter: A compatible adapter for the device is present. Its label shows “SL Power Electronics” and “Manufactured for Respironics Inc.” A velcro strap is present on the cable to prevent tangling. No physical damage (such as cable fraying) has been detected on the adapter in the visual.
• Carrying Bag: An original carrying bag in black and gray colors, with a shoulder strap, is present. The bag’s zipper and stitching appear visually intact.
• Humidifier Unit: An external humidifier unit, which attaches to the bottom or side of the device, is not visible in the visuals. Only the main air blower unit is present.

Battery Status

This model (REF 551P) does not have an internal battery; it operates with an external power adapter. No external battery pack is present in the visuals.

Label Information

Critical technical information found on the label at the bottom of the device is listed below:

• Serial Number (SN): P03845538
• REF Code: 551P
• Electrical Values: 12V — 5.0 A
• Other Reference: 1058190
• Origin: Made in USA (Manufactured in the United States of America)
• IP Protection Class: IPX1 (Protected against vertically falling water drops)

The barcode number on the power adapter is read as: SL041118.

Screen Analysis

In the photograph taken while the device is operating (Visual 1), the following expressions are visible on the screen menu:

• Back
• A-Flex (with a lock icon and a ‘3’ value next to it)
• A-Flex demo (with a lock icon and a ‘3’ value next to it)

This screen capture indicates that the device is in the settings menu (presumably clinician or user menu) and that the A-Flex pressure relief feature is active and locked at level 3.

Year of Manufacture

The code located in the bottom right corner of the barcode on the device’s bottom label is 20110714. This code indicates that the device’s manufacturing date is July 14, 2011. Additionally, “REV 03” and “2.XX” are present immediately to its left, which specify hardware/software versions.

Documents

No invoice, user manual, or warranty certificate for the device is present in the visuals. Considering the manufacturing date, it is certain that the device’s warranty period has expired.

Usage Duration

The total operating hours of the device (therapy hours or blower hours) are not displayed on the current menu screen in the visuals. To access this information, the device’s “Info” menu must be entered.

Potential Malfunction Risk

The device’s general appearance is sound, and its screen is functioning properly. However, considering it is approximately a 14-year-old device as of its manufacturing year (2011), a potential situation is that the lifespan of the internal motor (turbine) components may have decreased. Furthermore, the cosmetic wear on the front panel indicates intensive use of the device. Apart from this, no risky deformation such as cracks, fractures, or rust on the casing that would directly impede the device’s operation has been visually detected.