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Air Quality report

Hello everyone,
I am in the process of purchasing a home, and I had a air quality test performed. The mold value came back as 20 ng/L, which seems to be in the "moderate" zone. My daughter had an allergy test performed a little while ago and it came back that she has a slight allergy to mold, they did not specify which type. The report says that moderate means "Actively growing molds are present, individuals sensitive to molds will likely be affected.", this was concerning to me.
Some things to take in account of this sample and test:
The house fits all other requirements, but obviously my daughters health is the highest concern of all. I acknowledge that you all don't have nowhere near the complete picture, but any advise or feedback is more than appreciated.
I have included a snippet of the report, if more information is needed please let me know.
Thanks in advance,
KazTech
I am in the process of purchasing a home, and I had a air quality test performed. The mold value came back as 20 ng/L, which seems to be in the "moderate" zone. My daughter had an allergy test performed a little while ago and it came back that she has a slight allergy to mold, they did not specify which type. The report says that moderate means "Actively growing molds are present, individuals sensitive to molds will likely be affected.", this was concerning to me.
Some things to take in account of this sample and test:
- Only one reading was taken, and it was from the basement
- Walk out, unfinished basement.
- The house has had a mold issue in the basement before, but had been remediated, and a test was performed after to show that it was successfully removed.
- Home is in Southeastern, PA (suburb of Philadelphia)
- I know its probably impossible to determine via the a forum post, but is this level something to be concerned about? Speaking mainly to the basement is not a high traffic area, does this reflect the mold values in the rest of the house.
- If I make the basement as dry as possible ( use of dehumidifier, installation of return ducts in the basement, installation of UV lights in HVAC units, All things I am willing to do) will this assist in considerably lowering the mold readings? The concept was killing the moisture might kill most of the mold.
The house fits all other requirements, but obviously my daughters health is the highest concern of all. I acknowledge that you all don't have nowhere near the complete picture, but any advise or feedback is more than appreciated.
I have included a snippet of the report, if more information is needed please let me know.
Thanks in advance,
KazTech

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Comments
First question: is the basement leaking water anywhere, or the floor or walls damp? I presume this is concrete? If it is, you probably won't get far unless the basement walls can be waterproofed, and foundation drains -- which should be possible with a walk out basement -- are in place and are known to be working.
Then your overall approach makes sense, but I would recommend that the basement be included -- via proper ducting (sounds this is forced air) in the conditioned envelope of the house. Do NOT rely on the furnace taking air from the basement! Give it proper ducted returns and proper supplies to all areas, including the basement. You may find you need to add dehumidification, either in the forced air system, or stand alone; you need to keep the relative humidity down -- 50 to 60 percent is amply high, even in the basement. The UV will help.
Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England.
Hoffman Equipped System (all original except boiler), Weil-Mclain 580, 2.75 gph Carlin, Vapourstat 0.5 -- 6.0 ounces per square inch
First thanks a lot for your response.
Some answers to your questions:
- No there was no noticeable dampness on the basement walls or floor. (you are correct, concrete walls and floor)
- This is a forced air system, two unit, one for upstairs and one for downstairs.
Some further questions:Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England.
Hoffman Equipped System (all original except boiler), Weil-Mclain 580, 2.75 gph Carlin, Vapourstat 0.5 -- 6.0 ounces per square inch