Re: Is this air cleaner effective? CARL

[Guest guest]

Carl, Are there really no dust mites in CO?? If so, why, and are there

other regions or climate zones where that is true?

Thanks, Barb

--- In , " Carl E. Grimes " <grimes@...>

wrote:

>

>

> I can't quite tell who wrote this and it looks like there are a

couple

> of

[Guest guest]

Barb,

It's true. It was discussed here, I believe, with Jeff May

participating. National Jewish (Denver) has said for decades they

are a problem here. The Extension Service of Colorado State

University says the same thing. I was involved in a small study

about 10 years ago using the s Hopkins protocol for allergen

surveys in homes. Out of 30 houses only two showed evidence

dust mites and the levels were too low to quantify. Which means

they were barely detectable.

The reason is because the altitude and climate create semi-arid

conditions, meaning the moisture (including RH) is too low for the

dust mites to survive and thrive. If they aren't active for eating and

reproducing they can't amplify and create an infestation. How

many human babies are convieved and born in the deserts of

Death Valley? Also, the allergenicity of the fecal pellets seems to

degrade within a couple of months compared to dog dander

which may take a year and cat dander several years.

Any arid or semi-arid location would be the same, all else being

equal. It's not like dust mites make a choice. It is determined

solely by environmental conditions, just like for mold or any other

living organism (including people).

Carl Grimes

Healthy Habitats LLC

-----

> Carl, Are there really no dust mites in CO?? If so, why, and are there

> other regions or climate zones where that is true?

> Thanks, Barb

>

>

> >

> >

> > I can't quite tell who wrote this and it looks like there are a

> couple

> > of

>

>

> ------------------------------------

>

> FAIR USE NOTICE:

>

>

[Guest guest]

CORRECTION: I meant to say, " National Jewish (Denver) has

said for decades they NOT are a problem here. "

Carl Grimes

Healthy Habitats LLC

-----

> Barb,

>

> It's true. It was discussed here, I believe, with Jeff May

> participating. National Jewish (Denver) has said for decades they

> are a problem here. The Extension Service of Colorado State

> University says the same thing. I was involved in a small study

> about 10 years ago using the s Hopkins protocol for allergen

> surveys in homes. Out of 30 houses only two showed evidence

> dust mites and the levels were too low to quantify. Which means

> they were barely detectable.

>

> The reason is because the altitude and climate create semi-arid

> conditions, meaning the moisture (including RH) is too low for the

> dust mites to survive and thrive. If they aren't active for eating and

> reproducing they can't amplify and create an infestation. How

> many human babies are convieved and born in the deserts of

> Death Valley? Also, the allergenicity of the fecal pellets seems to

> degrade within a couple of months compared to dog dander

> which may take a year and cat dander several years.

>

> Any arid or semi-arid location would be the same, all else being

> equal. It's not like dust mites make a choice. It is determined

> solely by environmental conditions, just like for mold or any other

> living organism (including people).

>

> Carl Grimes

> Healthy Habitats LLC

>

> -----

> > Carl, Are there really no dust mites in CO?? If so, why, and are there

> > other regions or climate zones where that is true?

> > Thanks, Barb

> >

> >

> > >

> > >

> > > I can't quite tell who wrote this and it looks like there are a

> > couple

> > > of

> >

> >

> > ------------------------------------

> >

> > FAIR USE NOTICE:

> >

> >

[Guest guest]

That is fantastic. I figured wherever their was dust, their was dust

mites. Good to know since I have terrible dust mite allergy, that

perhaps some areas I may be more comfortable. I don't get to read

every post here but I wish I could. Thanks, Barb

--- In , " Carl E. Grimes " <grimes@...>

wrote:

>

> Barb,

>

> It's true. It was discussed here, I believe, with Jeff May

> participating.