A new study suggests that your indoor office air -- particularly in newly renovated offices - could be making you sick by exposing you to harmful PFCs, or polyfluorinated compounds.

''Workers who spend their day in a typical office environment are likely to have exposure to PFCs through the air, and that seems to lead to PFC levels in their blood," said researcher Michael McClean, associate professor of environmental health at the Boston University School of Public Health in the US.