[header] How to clean soot off furniture [title] Clean the wood with a hepa vacuum or lambswool duster. [step] These will pick up much of the dry soot that you'll want to get rid of before starting to clean deeper into the wood. [substeps] Hepa stands for high efficiency particle arrestance. 
Hepa vacuums will be marked as such on their packaging or in their owner's manual. Soot and smoke can leave behind dangerous particles in the air, and hepa vacuums will pick up more particles than regular vacuum cleaners.