Anyone know what material is in heat moisture exchanger?

[USMCVet]

Curious if anyone knows what material they use to capture the moisture?

[Hamguy515]

I researched this back when I first purchased an AirMini as I was curious what was being used in their HumidX product.

There's not a lot of detail out there, but the best information I could find is that the HME material is usually made of foam or paper (something hygroscopic) that may also be treated with salts. I would presume the salts assist with moisture exchange as they themselves are generally hygroscopic. They may also provide some antimicrobial properties.

[USMCVet]

Yeah wondering if maybe it's some sort of floral foam which is what they use and humidifiers in humidors

[Hamguy515]

The ResMed HumidX product uses a paper-like material. From my experience, something like floral foam is probably too dense of a material, although I've never had hands on that style of HME.

[USMCVet]

The ResMed HumidX product uses a paper-like material. From my experience, something like floral foam is probably too dense of a material, although I've never had hands on that style of HME.

I was thinking of making my own, if the floral foam is too dense I could always core out the center so it didn't restrict airflow but probably still moisten air. I would probably pre moisten the foam as well. I would still likely have to use a thin paper filter just to make sure fine particles from the foam didn't break free and going into my lungs.

[Hamguy515]

Fine particles from the floral foam would be my other concern, but it sounds like you're taking that into consideration already. From experience, it's very "crumbly" for lack of a better description.

[hermeshermes]

Curious if anyone knows what material they use to capture the moisture?

Did you get around to this DIY project yet?

[USMCVet]

No not yet, haven't been feeling well, have been getting lower abdominal pain for last week and a fever starting today. Hopefully in a week I can start but getting married in next couple weeks then honeymoon week after.

[Dog Slobber]

Hopefully in a week I can start but getting married in next couple weeks then honeymoon week after.

Congratulations!

All the best to you and your partner.

[USMCVet]

Hopefully in a week I can start but getting married in next couple weeks then honeymoon week after.

Congratulations!

All the best to you and your partner.

Thanks!!!!

[zonker]

No not yet, haven't been feeling well, have been getting lower abdominal pain for last week and a fever starting today. Hopefully in a week I can start but getting married in next couple weeks then honeymoon week after.

mazel tov! yeah, i think you might have other things on your mind.

[USMCVet]

Yes in ER now lol waiting on CT results for my abdominal pain. Hopefully it's nothing and doesn't effect wedding.

ETA, diverticulitis is the cause no surgery at this time!