Q: We painted our brick fireplace white. But after some use, smoke has stained the brick. What’s the best way to clean it? A: Soot is mostly carbon particles, but it often has a greasy nature ...

What It Takes to Clean Industrial Soot and Grime From a Pittsburgh Church's Murals MILLVALE, Pa. (AP) — How do you conserve 80-year-old murals that have accumulated decades' worth of soot ...

Cleaning off decades of pollution In the initial days, the conservation team brushed and vacuumed off surface dirt and soot. Then they used wet cosmetic sponges and thin cotton swabs to clean surfaces ...

Cleaning off decades of pollution In the initial days, the conservation team brushed and vacuumed off surface dirt and soot. Then they used wet cosmetic sponges and thin cotton swabs to clean ...