Has anyone noticed over the past few years that the diameter of CPap hoses has been cut in half?

[Raberdash]

My husband started using a CPAP in 1992. The hoses were 3/4” in diameter.

When I ordered new hoses about three years ago, I noticed that the diameter had shrunk to around 1/4” in diameter.

It seems to me that this would have a direct effect upon the amount of air coming through the machine and reaching the mask. It also seems to me that this would offset the original settings: for example, were you to pour gasoline through a three-quarter inch hose, it would flow much faster with much more volume than through a one quarter inch hose.

Does anyone have an explanation for this? When I asked the CPap Supply company about this discrepancy, they flatly denied that the hoses had ever been any larger in diameter, essentially calling me a liar.

[LSAT]

There are...and there has been for many years...2 hose sizes. There is the standard hose and the slimline hose. There is a setting in the CPAP machines for you to indicate which hose you are using,

[Grumpy48]

Philips has three hose sizes. A 22mm(0.87") non-heated hose, a 15mm(0.59") heated hose, and a 12mm(0.47") heated hose. My DreamStation 2 recognizes which size hose is connected and makes adjustments to the air flow automatically.

[Aretino]

The flow is also reduced at the mask.

[Conrad]

My husband started using a CPAP in 1992. The hoses were 3/4” in diameter.

When I ordered new hoses about three years ago, I noticed that the diameter had shrunk to around 1/4” in diameter.

It seems to me that this would have a direct effect upon the amount of air coming through the machine and reaching the mask. It also seems to me that this would offset the original settings: for example, were you to pour gasoline through a three-quarter inch hose, it would flow much faster with much more volume than through a one quarter inch hose.

Does anyone have an explanation for this? When I asked the CPap Supply company about this discrepancy, they flatly denied that the hoses had ever been any larger in diameter, essentially calling me a liar.

1/4'? You may need a new tape measure. To my knowledge, there are no cpap air hoses with that small of a diameter.

[ChicagoGranny]

1/4'? You may need a new tape measure. To my knowledge, there are no cpap air hoses with that small of a diameter.

Slimline hoses are 15mm (0.59 inches). Maybe he is talking about the short tube that comes with some masks???

[Conrad]

1/4'? You may need a new tape measure. To my knowledge, there are no cpap air hoses with that small of a diameter.

Slimline hoses are 15mm (0.59 inches). Maybe he is talking about the short tube that comes with some masks???

Maybe, but 1/4" is pretty small to be forcing air through.

[spitintheocean]

My husband started using a CPAP in 1992. The hoses were 3/4” in diameter.

When I ordered new hoses about three years ago, I noticed that the diameter had shrunk to around 1/4” in diameter.

It seems to me that this would have a direct effect upon the amount of air coming through the machine and reaching the mask. It also seems to me that this would offset the original settings: for example, were you to pour gasoline through a three-quarter inch hose, it would flow much faster with much more volume than through a one quarter inch hose.

Does anyone have an explanation for this? When I asked the CPap Supply company about this discrepancy, they flatly denied that the hoses had ever been any larger in diameter, essentially calling me a liar.

I should have gotten a more explicit answer from the manufacturer. Perhaps the newer machines are designed to work with smaller hoses to maintain the same air pressure?

[ChicagoGranny]

Perhaps the newer machines are designed to work with smaller hoses to maintain the same air pressure?

The old machines work with the smaller diameter (15mm = 0.59 inches) slimline hoses.

[ChicagoGranny]

by Raberdash » Wed Oct 09, 2024 3:34 am

My husband started using a CPAP in 1992. The hoses were 3/4” in diameter.

When I ordered new hoses about three years ago, I noticed that the diameter had shrunk to around 1/4” in diameter.

The inside diameter of a standard CPAP hose is 19 mm (about 3/4 inch). The inside diameter of a slimline hose is 15 mm (about 6/10 inch). Hoses are not 1/4 inch (6.35 mm).

Most users prefer the slimline hose.

[Grumpy48]

I wish Resmed had the 12mm ultra-flexible heated hose that Resperonics has for the DreamStation 2. The Resmed 15mm Slimline is really stiff by comparison and I ended up getting a Sleepweaver Feather weight tube extension as it was so annoying. The Resperonics 12mm is 27/64' (11.5mm) inside diameter. Still not close to 1/4".

This is the outer 'coil' diameter as a comparison. DME had sent a Sunset branded hose which was close to a 15mm and got returned for the Resperonics 12mm I use.

[ChicagoGranny]

The Resmed 15mm Slimline is really stiff by comparison

The packaging kinks bother me.

[Conrad]

The Resmed 15mm Slimline is really stiff by comparison

The packaging kinks bother me.

If you soak the kinked hose in warm/hot water and then hang it up to dry, a LOT of the kinks come out. After doing this a couple three times, all the kinks are gone from my hose.

[Janknitz]

The flow is also reduced at the mask.

Are you claiming that not enough air is flowing tothe mask, or the CO2 vent is not flowing as much because of a smaller diameter hose???