Questions & Answers about Toz bezi rafları temizliyor.
toz = dust
bez = cloth
Combined as toz bezi, it forms a compound meaning “dust cloth” or “duster.” In many common Turkish compounds the first noun can remain in its bare form (no genitive suffix), so you get a neat noun-noun combination.
raf = shelf
-lar = plural (“shelves”)
-ı = accusative case for a definite direct object (“the shelves”)
Putting them together: rafları = “the shelves” as a definite, plural object.