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From: Andy Hall on 14 Jun 2008 03:56
On 2008-06-14 07:38:46 +0100, joey <korey72712(a)gmail.com> said:

> Oh, ok. Thank you for the explanation. At least I'll know what to
> watch for if I am started on CPAP therapy. I don't why I thought of
> de-humidifying other than I wasn't sure which function was used when
> it comes to CPAP treatment and how it was useful.
>
> Thanks for the explanation!


If you do go this route, a heated humidifier is a good idea. Some
machines have them as an integrated attachment but you can also buy
them separately Heating achieves two things:

- Water is evaporated in the humidifier by passing the air over the
surface in some way. This has the effect of cooling the air slightly
and it can then feel uncomfortable. (Look up Latent Heat of
Evaporation or consider how sweating works). Having some heating
of the water means that the temperature can be raised back to room
levels before the air is breathed.

- Heated humidifiers generally have an adjustment which will control
the amount of humidity. This is useful because some people find that
they have increased nasal congestion if the air is too dry or too
moist. Being able to adjust the humidity is often helpful



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