Advise needed on IAQ system

[Guest guest]

We (my husband, 3 children and I) will soon be moving into a new home, built in

1995. Until last year the house was covered with dryvit (stucco). It's been

removed and all external moisture damage was repaired. So we thought we were

safe.

After putting a contract on it the inspector found evidence of mold. The seller

had an industrial hygienist come in and do complete testing. Seller is paying

for all remediation (about a $27k job). I thought once it was cleaned up there

wouldn't be anything to worry about.

Part of our contract states the seller is to install an Indoor Air Quality

system on the HVAC units. When I added that to the contract we weren't specific

in what we wanted, because I really don't know anything about them. I have

heard about the UV light systems that kill mold spores, and am wondering if they

really work.

Today I ran into the mold remediator that may be doing the work (still waiting

for all bids to come in) and asked him about the air system he would put on. He

said those UV systems don't really kill mold, that the air moves too fast for

that. He said some good filters would work. He told me that if the mold is

contained inside the wall there is no concern. I was shocked. If he ends up

doing the work, I will probably have to take legal action to get out of the

contract. I really don't think he knows what he's talking about. How can it be

ok for mold to stay in the walls? What happens when we do all our planned

remodeling?

I'd like to know from those of you who have an IAQ system what you have found to

work the best at keeping the air mold-free once mold has been removed from the

building. I feel I need to insist that the remediation work include a specific

type of IAQ unit, but I don't know what to ask for.

Any help would be greatly appreciated.

(Sorry this post was so long...)

Thanks!

Martha