Yep, was replying to you.ReverseBall wrote: ↑Sat Jan 14, 2023 6:45 pmHey, was this a response to me? In a linear thread it's a little confusing, but I was the one talking about the "turbulence/snoring" sound coming from the mask when the hose was at a bad angle in a previous comment. I think we might be having the same problem?corgan115 wrote: ↑Sat Jan 14, 2023 2:28 pmI think this is what I'm hearing. I'll try your suggestion.
To be clear though, the noise that I'm referring to ONLY happens during inhalation. For example:
1) Don't have the mask attached at all and just turn your machine. Then, using yours thumbs, place them over the magnetic ports. The mask is completely quiet.
2) Have the mask on and attached to the halo's but hold your breath. The mask is completely quiet.
3) Start breathing, I hear the noise during inhalation only. Exhalation is completely quiet.
Assuming you were talking to me, I think the "snoring" sound would only happen during inhalation. I believe when the hose is at a bad angle AND you are inhaling, the air brushes up against the side of the joint as it flows by, causing turbulence/noise. If there is little to no net air flow (as in case 1 and 2 you described), there would be no turbulence because there is no air flow (well, there's a tiny bit of air flow due to the vents, but it's not enough to cause noise). But when inhaling there is a lot of air flow, enough to trigger the "snoring" effect. In exhale, I don't believe there's as much air going through that joint so no noise. Does this seem similar to your observations?
I'm curious what pressures you are using? I have a vauto at about 10.6 cm H2O inhale, about 7 exhale. This is just a guess, but I would imagine that people using lower pressures wouldn't produce the snoring effect, even on inhale.
I will pay close attention to the angle of the hose tonight. This might explain why this issue seems kind of random to me. Some nights I hear it, some nights I don't. Some nights it's loud, some nights it's barely audible.
Last night it was pretty loud while I was trying to sleep but then in the middle of the night it was gone, despite the pressure being greater then.
My starting (ramp) pressure is 7 and then after that runs in Auto mode between 11 - 15. EPR is always 3.