A:Answer Hi Lisa,
Yes, you can use the hood in an 88" ceiling, as long as the mounting height is correct.
Please see the "Setting the Location" section on page 11 of the user's manual.
Manual
https://downloadcenter.samsung.com/content/UM/202401/20240110132037151/O_01._DG68-01416C-03_IB_FULL_NK30CB600W12AA_EN.pdf
Have a great day,
Aloe