lint

On the fifth floor, inspectors said, inmates were triple-bunked in a hot cell block where the air conditioners were filled with lint.

As he put it, “The speed of light is never going to go out of style. Gravity, lint, signs, time itself, is not going to go out of style.”

To the untrained eye, it looks like a speck of black lint, not much larger than the tip of a pin.

“We have a couch pet hair remover — a reusable manual lint roller — and we’ve given up on black clothing surviving without her presence being known,” Knox says.

A product safety engineer said the lint filter should be cleared regularly.