Here are some of the best original premium screen protectors for iPhone 14 Pro Max:

•  Belkin UltraGlass Screen Protector: This screen protector is made of chemically strengthened lithium aluminosilicate (LAS) glass, which is up to 2x stronger than tempered glass. It also has an oleophobic coating that resists fingerprints and smudges. 

    Spigen Glas.tR EZ Fit Screen Protector: This screen protector is made of tempered glass with an oleophobic coating. It is also very easy to install, thanks to its  

• AmFilm Tempered Glass Screen Protector: This screen protector is made of tempered glass with an oleophobic coating. It is also very thin and has a 99.9% transparency rating, so it will not affect the clarity of your iPhone's screen. 
• iCarez Glass Screen Protector: This screen protector is made of tempered glass with an oleophobic coating. It is also very scratch-resistant and has a 9H hardness rating. 

These are just a few of the many great original premium screen protectors for iPhone 14 Pro Max. When choosing a screen protector, it is important to consider the following factors:

• Material: The most common materials for screen protectors are tempered glass and PET film. Tempered glass is more durable and scratch-resistant, while PET film is more flexible and easier to install.
• Thickness: The thickness of the screen protector will affect how much it affects the clarity of your iPhone's screen. A thinner screen protector will have less of an impact, but it may be more fragile.
• Hardness: The hardness of the screen protector will determine how well it resists scratches. A higher hardness rating means that the screen protector is more resistant to scratches.
• Oleophobic coating: An oleophobic coating will help to repel fingerprints and smudges from the screen protector.