Symptoms from "companion" fragrances?

(dd) said:

Are there cases where fragrances that generally are considered safe
but have appeared along with harmful agents then produce symptoms on
their own, something like Pavlov's dog?

In researching for "multiple chemical sensitivity", the
researchers used a fragrance and an odorless gas (I believe it
was CO2) to produce breathing problems by lowering the O2 content
of the air.

Later, in some people, the fragrance alone was enough to produce
reports and symptoms of breathing problems, even though it was in
room air, not low-oxygen air.

Quoted message said:

Consider a janitor, whose
long-standing use of cleaning solutions causes respiratory problems.
If the solutions had a fragrance, say lemon, would it be surprising if
the fragrance brought on symptoms by itself? Are there confirmed
cases of that sort of development? Claims of it happening?

No confirmed cases, but it has happenhed during research.

Tsu Dho Nimh

--
When businesses invoke the "protection of consumers," it's a lot like
politicians invoking morality and children - grab your wallet and/or
your kid and run for your life.

Tsu,

I appreciate hearing about cases that confirm deductions. Hopefully,
I'll find more documentation as I continue to search.

Best,
dd

Tsu Dho Nimh <[email hidden]> wrote in message news:<[email hidden]>...

Quoted message said:

(dd) said:

Are there cases where fragrances that generally are considered safe
but have appeared along with harmful agents then produce symptoms on
their own, something like Pavlov's dog?

In researching for "multiple chemical sensitivity", the
researchers used a fragrance and an odorless gas (I believe it
was CO2) to produce breathing problems by lowering the O2 content
of the air.

Later, in some people, the fragrance alone was enough to produce
reports and symptoms of breathing problems, even though it was in
room air, not low-oxygen air.

Quoted message said:

Consider a janitor, whose
long-standing use of cleaning solutions causes respiratory problems.
If the solutions had a fragrance, say lemon, would it be surprising if
the fragrance brought on symptoms by itself? Are there confirmed
cases of that sort of development? Claims of it happening?

No confirmed cases, but it has happenhed during research.

Tsu Dho Nimh