I just got an old dining set from my grandparents and the chairs have never been reupholstered. It doesn't seem difficult to do, but my concern is more so about what am I being exposed to? Asbestos? Mold? Is there something I should be aware of when dealing with old fabrics and foams that are probably from the 1950s. They were stored in a uncontrolled temperature and uncontrolled humidity room for 2+ years. I am 12 wks pregnant and just don't want to go full into it without knowing the risks.