10 foot hose vs 6 foot hose

[davep700]

Is there any functional difference noted between a 10 ft hose and a 6 ft hose - I assume if there is Is there is slightly reduced pressure due to the added length the blower compensates.

Also strange that to reach their bed some people first think to get a longer hose rather than an electrical extension cord.

[Wulfman...]

Is there any functional difference noted between a 10 ft hose and a 6 ft hose - I assume if there is Is there is slightly reduced pressure due to the added length the blower compensates.

Also strange that to reach their bed some people first think to get a longer hose rather than an electrical extension cord.

"No" and "No".
It's been discussed many times before on the forum and the answer has always been there are no differences.


Den

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[palerider]

Is there any functional difference noted between a 10 ft hose and a 6 ft hose - I assume if there is Is there is slightly reduced pressure due to the added length the blower compensates.

lower delivered pressure due to higher flow resistance in the longer hose.

Resmed bilevels have a '3 meter' setting for hose type, so they can deliver more accurate pressure.

Also strange that to reach their bed some people first think to get a longer hose rather than an electrical extension cord.

I've got a 6 foot wide bed, it's not strange at all. the only way your idea would work is if I hung the machine on a chain over the bed....

now THAT'S what I'd call STRANGE

[chunkyfrog]

---and just a tiny bit kinky.

[Krelvin]

I have used a 10ft hose for many years. I used the heated hose when I got my new machine Oct of 2014, but went back to the 10ft hose in mid Dec couple months later.

Not really sure why I would want the cpap closer to me. Like the longer hose.

[Wulfman...]

Here are some of the discussions from the past (some more lengthier than others).

viewtopic/t110800/viewtopic.php?f=1&t=2 ... th#p181442

viewtopic/t110800/viewtopic.php?f=1&t=3 ... th#p314036

viewtopic.php?f=1&t=37508&st=0&sk=t&sd= ... ose+length

"dsm" did quite a few tests regarding this subject.
However, the accuracy of the machines comes into effect, too.

Here are a small list of some of the manufacturers tolerances from several generations of machines (typically available in the "User Guide" manuals. As you can see, there's still about a +/- .5cm tolerance with most of them.

Den

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Respironics Legacy:

Pressure Stability:
4 to 10 cm H2O (±0.5 cm H2O)
>10 to 20 cm H2O (±1.0 cm H2O)
Measured in accordance with EN 17510 @ 6.6, 13.2, & 20 cm H2O @ 500 ml with BPM set to 10, 15, & 20 BPM
performed at 23° C (±2° C), 50% RH (±5%), and an atmospheric pressure of 101.54 kPascals.


Respironics M Series

Pressure Stability:
<10.0 cm H2O (±0.5 cm H2O)
≥10.0 to 20.0 cm H2O (±1.0 cm H2O)
Measured in accordance with EN ISO 17510-1 @ 1/3, 2/3, and Pmax with BPM set to 10, 15,
and 20 BPM @ 20° C (±5° C), 50% RH (±5%), and an atmospheric pressure of 101.54 kPascals.


P/R System One:

Pressure Accuracy
Pressure Increments: 4.0 to 20.0 cm H2O (in 0.5 cm H2O increments)
Pressure Stability:

Static Dynamic
< 10 cm H2O Dynamic
≥ 10.0 to 20 cm H2O
Device ± 0.5 cm H2O ≤ 0.5 cm H2O ≤ 1.0 cm H2O
Device w/ Humidifier ± 0.5 cm H2O ≤ 0.5 cm H2O ≤ 1.0 cm H2O



ResMed S9

Pressure measurement tolerance
±0.5 cm H2O ± 4% of the measured reading

Pressure sensor at air outlet
Pressure 4 to 20 cm H2O ±0.5 cm H2O (± 4% of
measured value)
0.1 cm H2O


ResMed Airsense10

Pressure measurement1:
Mask pressure2 ±[0.5 cm H2O + 4% of measured value]
Flow and flow derived values1:
Flow ±6 L/min or 10% of reading, whichever is greater, at 0 to 150 L/min positive flow
Leak2 ±12 L/min or 20% of reading, whichever is greater, 0 to 60 L/min

Pressure accuracy
Maximum static pressure variation at 10 cm H2O according to ISO 17510-1:2007
Standard air tubing SlimLine air tubing
Without humidification ± 0.5 cm H2O ± 0.5 cm H2O
With humidification ± 0.5 cm H2O ± 0.5 cm H2O

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[SleepyStar]

I got the 10 foot hose because I have a queen sized bed all to myself, and I am someone who is....an active sleeper, we'll put it that way.

I pulled my whole machine assembly over about once every 3 days at first, upside down end result. Waking up with a nose hose full of water is pretty disorienting. Got a 10 foot hose, not been a problem since.

It doesn't much matter if I put the cpap on one side or the other of the bed...I roll around enough that I and up roaming the whole bed overnight. Tried that first. I just need the longer hose.

I guess I am the type of person the longer hose is made for

[palerider]

Here are some of the discussions from the past (some more lengthier than others).

viewtopic/t110800/viewtopic.php?f=1&t=2 ... th#p181442

a couple of observations from the thread that have nothing to do with hose length... more about 'the more things change, the more things stay the same':

1) there were those bitching out others for how the posts were worded, and people bitching about the bitchers.
2) back then (2007) they hated apria.

[Wulfman...]

Here are some of the discussions from the past (some more lengthier than others).

viewtopic/t110800/viewtopic.php?f=1&t=2 ... th#p181442

a couple of observations from the thread that have nothing to do with hose length... more about 'the more things change, the more things stay the same':

1) there were those bitching out others for how the posts were worded, and people bitching about the bitchers.
2) back then (2007) they hated apria.

Yup! The more things change, the more they stay the same........ HUH!?!?
Like I've been telling people for years......there's not much "new" on the forum


Den

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