Dual Humidity ASV and O2 Concentrator?

[M'ohms]

I have searched for a discussion about this topic, but was unable to find one. I have recently added O2 to my ASV and have been dried out to the point of nose-bleeds and sore throat. My RT told me not to use both heated humidifier and bubbler together, but I wonder about that.

I tried the heated humidifier alone and it wasn't enough moisture. I tried bubbler alone, and while it produced enough moisture, it was freezing cold. Last night, I tried turning the heated humidifier down to level 1 (70 %) and heated tubing to level 5 (warmest setting) to give me heat, and added the bubbler to give me the moisture I need. This morning, I had only used about 2/3rds the water in the heated humidifier that I normally use. The bubbler gave me the moisture that I needed and the heated humidifier gave me the heat that I needed. I am happy with these results.

Am I going to damage my ASV by doing this? My RT seems to think so. BTW, I added a pressure valve and an in-line water trap to my setup. Am I missing something?

[Pugsy]

I can't see any way to damage the ASV using it the way that you did last night.
Where do you have the O2 bled in at? Near the humidifier to hose junction or hose to mask junction?
I just don't see how it could hurt the ASV blower...did your RT explain why they thought it would hurt the ASV?

[M'ohms]

My set up is this:

Concentrator--bubbler--7' tubing--water trap--7' tubing--bleed in adaptor--mask.

ASV--heated tubing--pressure valve--12" tubing--bleed in adaptor--mask.

My RT said that using both humidifiers would cause rainout and the excessive moisture would damage the circuitry on the ASV. I had no rainout.

[palerider]

Am I going to damage my ASV by doing this? My RT seems to think so. BTW, I added a pressure valve and an in-line water trap to my setup. Am I missing something?

my friend on the asv (36037) is using 2lpm suppox, bled into the airstream via a fitting at the back of the asv, with one of those ball filters between the bleed connector and the machine...

this sort of helps keep o2 from backflowing into the machine (he likes to turn on the o2, then the machine, even though that's not recommended since the concentrator isn't right beside the bed)

when he first got the concentrator, we tried the o2 humidifier, but there were so many warnings about it and cleaning it and all was more of a pain that he wanted, and the general consensus was that it wasn't needed for only 2lpm... so he stopped using it.

all that said, I can't see anything that you're doing that could damage the asv.

I see you're using a prs1 machine, so I'd guess you've got the o2 going straight into the mask. do you know anybody that's "handy" and could drill a hole in the hose connector at the machine end, and put a hose nipple on it? (the s9 climateline max hose has a o2 port, I was hoping you had a s9 asv, but I went back and looked at your equipment listing)

[palerider]

My set up is this:

Concentrator--bubbler--7' tubing--water trap--7' tubing--bleed in adaptor--mask.

ASV--heated tubing--pressure valve--12" tubing--bleed in adaptor--mask.

My RT said that using both humidifiers would cause rainout and the excessive moisture would damage the circuitry on the ASV. I had no rainout.

uh... does your RT not understand that all that potential rainout and excessive moisture is happening AFTER the ASV???

[Pugsy]

I just can't see it happening with your set up at all especially with the heated hose.
I am sure we have some forum members here who are using added oxygen and they can tell you their experience. I have none myself. I was only thinking about it from a logical point of view and I just can't see it happening.

[M'ohms]

This is exactly why I brought the question here. It didn't make sense to me.

As to the "handy" suggestion: do you mean for me to drill a hole into the heated hose connector that attaches to the humidifier elbow? I am currently running the O2 into the bleed-in adaptor right next to my mask.

[Pugsy]

I wouldn't go drilling holes anywhere. With the bleed in near the mask I just don't see anyway excess water could form and make the long trip back through the hose and through the water chamber to get into the blower.

[M'ohms]

I wouldn't go drilling holes anywhere. With the bleed in near the mask I just don't see anyway excess water could form and make the long trip back through the hose and through the water chamber to get into the blower.

Especially since I am running the hoses up and over a cpap hanger above my head! I feel more confident now to continue the same set-up again tonight. It really satisfied my needs. Like you, Pugsy, my nose needs lots of moisture!

[Stormynights]

I use O2 and have never had a problem with the setup. I have to have a lot of moisture.

[chunkyfrog]

The term "clueless RT" seems a bit redundant, correction--a LOT!

[palerider]

This is exactly why I brought the question here. It didn't make sense to me.

As to the "handy" suggestion: do you mean for me to drill a hole into the heated hose connector that attaches to the humidifier elbow? I am currently running the O2 into the bleed-in adaptor right next to my mask.

I'd have to see one of the hoses to see whether I'd actually think that might be a good idea or not, so it's more of a 'well, it's an idea' as opposed to a recommendation.

inspired by the resmed hose with o2 connector: https://www.cpap.com/productpage/resmed ... rt-S9.html

having the o2 bleed in further away might make it much less objectionable.

someone here, I don't remember, modified one of the new as10 heated hoses in a similar fashion... drilled a hose, and glued in a o2 nipple.

however, if what you've got is working, then... that's the important bit

[palerider]

I wouldn't go drilling holes anywhere. With the bleed in near the mask I just don't see anyway excess water could form and make the long trip back through the hose and through the water chamber to get into the blower.

I wouldn't worry about it, normal o2 addition is to put a bleed adapter right on the outlet of the blower or humidifier.

the way an o2 humidifier (bubbler) works is to bubble the o2 through a pint size jar of water, then the o2 goes through the little tiny o2 line to wherever it's needed... I could be wrong, but I don't think even a drop will manage to collect from that system, and the fresh o2 is usually pretty cold due to the process used to filter out of the room air.

even if it did, any drops would just go back into the asv humidifier.

[palerider]

The term "clueless RT" seems a bit redundant, correction--a LOT!

perhaps M'ohms was talking not to a Respiratory Therapist, but instead to a Ridiculous Twit

[TangledHose]

This is exactly why I brought the question here. It didn't make sense to me.

As to the "handy" suggestion: do you mean for me to drill a hole into the heated hose connector that attaches to the humidifier elbow? I am currently running the O2 into the bleed-in adaptor right next to my mask.

I'd have to see one of the hoses to see whether I'd actually think that might be a good idea or not, so it's more of a 'well, it's an idea' as opposed to a recommendation.

inspired by the resmed hose with o2 connector: https://www.cpap.com/productpage/resmed ... rt-S9.html

having the o2 bleed in further away might make it much less objectionable.

someone here, I don't remember, modified one of the new as10 heated hoses in a similar fashion... drilled a hose, and glued in a o2 nipple.

however, if what you've got is working, then... that's the important bit

It were me

I liked how the S9 max oxy line worked, less hassle than having to manage two tubes all the way to the mask, and this way the supplemental O2 gets mixed with heated and humidified air before it gets to mask ...... Works good, lasts long time