Catherine,
Having gone through something similar, my thoughts go out to you and yours. Air quality is something that isn't stressed enough in today's advice for new chameleon keepers. I recall back in the early '90's, I was told to treat them as if they were parrots, no teflon, no smoking, no air scents etc..around them at all.
I'm still worried about effects from long term mold exposure, but until they start acting funny again, I will keep my fingers crossed and hope for the best.
Again, I'm very sorry to hear about your losses.
Luis