dust trap

dust trap (plural dust traps)

1. A place where dust tends to collect.
   • 1963 August, W. Shepherd, “Stockholm's modern underground railway”, in Modern Railways, page 97:

     Of course the rolling stock is furnished in a style as modern as tomorrow, with a complete absence of dust traps and fussiness.

• “dust trap”, in Lexico, Dictionary.com; Oxford University Press, 2019–2022.