This painting ... there's the whole frame restoration. [laughs] Caryn does an allover vacuuming and then a sponge treatment of the frame surface to remove any loose dust. Now we clean the frame.

Oil paintings are sophisticated because, unlike digital art, they were painted by hand, making them typically more expensive. However, just like any other decorative piece, you have to be on the ...

Here's how old paintings get cleaned. Conservator Julian Baumgartner specializes in painting restoration ... he gets to cleaning. He typically starts by cleaning off old varnish.