Hey thanks so much for taking the time to respond. I bought three of those kits with the Petri dish and they were all negative. It's stuff like this that makes me feel confident everything was normal until I read that dead mold spores can effect your health and would not show up on the tests.
Im just not sure if there is mold or mycotoxins inside the wood of these tables or the wood/upholstery of the chairs. I contacted some re-upholstery companies to see if they had any knowledge.