MarcNH wrote:
I started with a medium and then went to large, which made it worse. Going to a small appears to have solved the pain and leakage problems, although it's hard for me to believe my nose is a "small". If I use the top clip, though, it tends to turn the barrel enough to bring the pain back, unless I leave the hose so loose that you could fly a small plane underneath. I would rather have the Swift II pillow in this design. The LT pillow seems much fatter and looks to be the cause of the problem.
The position of the pillow up/down (turning on the two small side swivel wheels) and the pull/push by the hose when is routed overhead interact. You need to adjust one for the other, to work together properly.
But I have another question. I've read a few reviews of the Swift LT and many like the way the vents blow down instead of out. That's not happening with mine. It blows straight out, and I can't see any way to have it blow down. The vents seem to point perpendicular to the hose. So, basically, I can't face my wife with this thing on. The blowing in the ear idea is nice, but that works only for a very short time. Maybe when it gets warm out again, it can double as a fan.
I do not think it is straight out. You can put the back of your hand a little farther away to feel the air stream. It is at about 30 deg away from straight out, dispersed. Since that swings with the tube, when your route it overhead vs straight down to under the covers, there may be a 60 deg change in the direction. BTW, I was a fan of the overhead routing, and was convinced that I absolutely liked that better, my training from my first mask, the Headrest
Now I have tried routing it straight down -- thanks to some encouragement from a few good users here --, and my whole hose is under the covers (I do have a 10' one), and I liked this much better; especially when the weather started turning cold. BTW, this reduces the rainout problem immensely.
And one last question - Do any of you have air leaking out of the other end of the mask's hose, where it connects to the main hose? It seems to be coming from the joint between the hose itself and the clear plastic connector. And if the hose bends a little too much, air really gushes out. It doesn't seem like a venting design, so I'm thinking of sealing it, either with some silicone sealant or maybe just electrical tape.
Yes! This is a problem! Some model swivels may be better than others. It is supposed to swivel very freely when loose under no air pressure inside; the air pressure should stretch out that loose slip joint and seal it. But some times it does not. Unfortunately, when it seals well, it is no longer a nice swivel I have seen other swivels that work much better with less play or a thin nylon pressure gasket inside.
If it is a real problem you can actually tape it shut with a
masking tape in the stretched out position.
Do not use things like silicone in breathing circuit; while curing they can be extremely toxic. My son always reminds me that when I fixed a tiny leak in his aquarium with
one drop of silicone glue, about 20 years ago, all the fish died within a day--- NO EXAGGERATION! Masking tape is easy to remove, and experiment with.
For most users such tiny leaks are inconsequential. Since I use very low pressure (4.1cm was my avg last night) and very low out flow, any leaks like in that joint would register as unwanted leaks in my detailed studies of leaks over the past many months. I actually tried that by plugging the nasal pillows and finding all the other hose leaks --- yes, it may be non trivial compared to the intended out port flow.