Plastic vent covers are usually unobtrusive when they’re pristine white, but once they acquire that nasty yellow or beige color, which they undoubtedly will, they can look pretty gross, making even a ...

There’s a difference between something being dirty and discolored—and plastic vent covers can be both. While many homes feature vent covers made of metal, plastic is also relatively common. And one of ...

Yellowing air vents can be a major eyesore, especially when they stand out against clean, fresh walls and ceilings. This process is normal wear-and-tear -- over time, a mix of heat, light, and air ...

Two weeks ago I reported on an issue where some MacBooks were coming from the factory with a piece of clear plastic film covering the rear exit vent - which made the machine run (understandably) hot.