Can your hose length be too long?

[Fogster]

Is having 12ft of hose too long?

I have figured out that I have to crack the hose management issue if I am ever going to sleep well. Currently I have the standard 6ft hose. I am thinking of buying another 6ft hose and connecting them together so that I can run it back behind my bed. I probably don't need 12ft. It looks like they only come in 6ft lengths though.

[M.D.Hosehead]

A fella's hose can never be too long.

[Fogster]

That was worth a good laugh. Thanks hosehead.

[jdm2857]

cpap.com sells intermediate lengths -- 8' and 10':

https://www.cpap.com/cpap-hose/cpap-hose-tubing.php

The longer the hose, the greater the resistance, and the greater the pressure drop in the hose. My S8 AutoSet II has a hose length setting -- 2 meters (6' 7") or 3 meters (9' 10") and compensates for the hose length. So you shouldn't use more than necessary for good hose management. In the worst case, if you lengthen the hose and your results get worse, you could kick up your pressure setting just a bit.

[roster]

For me, of greater concern than a pressure drop would be the negative effect on the higher level functions of the machine. These functions of concern would be the machine's ability to control humidity and properly sense breathing for the purpose of exhalation relief and reporting and adjusting to breathing events and leaks.

At first I thought a hose longer than six feet would help me with the in-bed logistics. But after thinking through the best location of the machine and how the hose is managed in the bed, I was able to easily adjust some things so that the six-foot hose works well.

[Fogster]

The effect on the machine concerns me. I don't want to disrupt that. I am thinking that since some of you see a potential problem, I need to be a little creative and stick with the 6ft hose. Maybe if I bolt my machine to one of the blades of the ceiling fan it would work

[chunkyfrog]

I don't know if there is a correlation; but here goes:
With air-driven power tools, they tell you it is bad to use a long power cord;
but OK to use as much hose as you need--even 100' or so.
The high pressure hose doesn't lose significant energy, but the electrical conductor does
--proportional to its length and resistance. --physics
You might, however, lose pressure due to the turbulence created by multiple fittings, as well as artifacts inside the hose.
--aerodynamics--haven't a clue.
Since you can get a 10-footer, I'd try that rather than add extra joints into the mix.

[Goofproof]

The specs for most machines call for a max of 10 feet of hose. Jim