The maintenance of a stainless steel polished glass door pull handle is relatively easy and straightforward. Here are some general steps that you can follow to maintain the door handle:

1. Clean the handle regularly: The door handle should be cleaned regularly to prevent buildup of dirt, grime, and fingerprints. You can use a soft cloth and mild detergent to wipe down the handle.

2. Use a stainless steel cleaner: For a more thorough cleaning, you can use a specialized stainless steel cleaner. Follow the manufacturer's instructions carefully and use a soft cloth to apply the cleaner.
   

3. Avoid harsh chemicals: Avoid using harsh chemicals or abrasive materials, such as steel wool or scouring pads, as they can damage the polished finish of the handle.

4. Protect the handle from scratches: To prevent scratches on the handle, avoid using sharp or metal objects near it. You can also consider installing a protective film on the glass surface of the door.

5. Inspect the handle regularly: Regularly inspect the handle for any signs of damage or wear, such as scratches or discoloration. If you notice any issues, contact a professional for repair or replacement.

By following these simple steps, you can ensure that your stainless steel polished glass door pull handle remains clean and attractive for years to come. Regular maintenance can also extend the life of the handle and help prevent the need for costly repairs or replacements.