A sketch of an urban explorer wearing a respirator. In Commonthroat, the brand name of the respirator, qlqlMr has become the name for members of this subculture of older pups and teens who explore areas of their urban environment not open to the public, such as abandoned buildings and utility infrastructure.

The mask prevents mold inhalation when exploring long abandoned buildings. It doesn't serve to hide the wearer's identity from guards or cops, since yinrih are already face blind and use odor or fur pattern to recognize individuals.