Re: Air Duct Cleaning

[Guest guest]

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[Guest guest]

Barbara,

The collapsed lung case was an extreme example and probably unique. The reaction

was due to mold and not cleaning chemicals (none of which need be used in duct

cleaning, which only involves brushes and HEPA vacuum cleaning).

Professional air duct cleaning, performed to NADCA, standards can be very

useful.

Keep in mind that the moniker " air duct cleaning " is limited, and any cleaning

MUST include the AC coil (if present) as well as the blower and blower cabinet.

Very soiled, fibrous insulation, if present, should probably be replaced at the

same time, as in most cases, this material is contaminated with mold growth and

cannot be cleaned. (Only replace with foil-coated insulation.)

Whenever dusty materials are disturbed, great care must be exercised to avoid

spreading potentially allergenic dust.

Here are some relevant articles:

http://www.jmhi.com/just22.html

http://www.jmhi.com/just21.html

http://www.jmhi.com/just17.html

C. May

May Indoor Air Investigations LLC

www.mayindoorair.com

www.myhouseiskillingme.com

>Date: Thu, 17 Nov 2005 09:33:33 -0800 (PST)

>From: Barbara <floridabound03200@...>

>Subject: Air Duct Cleaning Question

>One evening, a couple years ago, I was listening to a

>radio program out of New York City, and the guest

>speaker was C. May, author of " My House Is

>Killing Me, " and he spoke about how dangerous air duct

>cleaning can be, and if I remember correctly, he

>stated, if a person is allergic to the chemicals they

>use to clean the ducts, their lungs can collapse.

>Does anyone in this group know anything about that?

>Barb E.

--

Reply to:

Jeff@...

[Guest guest]

I use to clean houses that had soot/smoke damage and we use to work hand in hand

with an air duct cleaning company. I got to be friends with them and would just

BS with them. they cleaned for mold and all of that too...they never used a

spray for the duct work so maybe this is a new type thing. as far as them

telling you they've never had problems and its environmentally safe don't

believe them...you learn to have patented answers for any questions customers

throw at you and you just say what you were trained to say and never really

question anyone if its actually true or not. I remember when we started treating

homes for dust mites and the very first customer the company did this process

for (he didn't know he was the first) asked me how many homes we treat for dust

mites in a day and I said " oh geez. we could treat 8 homes a day " he was

impressed and didn't realize I said " COULD " not that we did actually treat that

many. you learn what to say to get the job sold and then done...don't believe a

word they tell you, research it. ( I know you realize this that is why you are

asking the board this question!) but I also wonder if its necessary. do you

think theres a mold issue in the house? maybe you could have your wife call them

and act like she's a prospective customer and mention to them that she heard

that companies use some sort of fog/spray to make sure that mold doesn't come

back but have her say that she definitely DOESN'T want that done and then have

her ask them if its really necessary...I bet you will then hear a different

sales pitch come from them...something like " well, if you have a mold problem it

can help but if there's no issue with mold then it isn't really necessary " .

companies often times will say anything for the sale. phil [ ] Air Duct Cleaning

We are moving into a new home and will have the heating/AC air ducts cleaned.

The air duct cleaning company also uses an anti-microbial fog after cleaning as

a retardant to future bacterial/germ/fungal growth. They sent me the Material

Data Safety Sheets which listed Hazardious Ingredience as Sodium Chlorite

(3.35%) and Chlorine Dioxide (trace amounts). They said no one has ever had

problems and it is environmentally safe. Should we do this fog or will the

chemicals used expose our son to more toxins than it's worth?

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