(03-26-2020, 06:37 AM)Melman Wrote: From CDC https://www.cdc.gov/legionella/about/cau...ssion.html
“Causes and Common Sources of Infection
Legionella is a type of bacterium found naturally in freshwater environments, like lakes and streams. It can become a health concern when it grows and spreads in human-made building water systems like
• Showerheads and sink faucets
• Cooling towers (structures that contain water and a fan as part of centralized air cooling systems for building or industrial processes)
• Hot tubs that aren’t drained after each use
• Decorative fountains and water features
• Hot water tanks and heaters
• Large plumbing systems “
Well water isn’t mentioned but it may be possible source; but in low numbers that are not a threat.
Many long term members of this forum have found that any water that is safe to drink is safe for use in CPAP humidifiers.
Again from CDC “Most healthy people exposed to Legionella do not get sick. People at increased risk of getting sick are:
• People 50 years or older
• Current or former smokers
• People with a chronic lung disease (like chronic obstructive pulmonary disease or emphysema)
• People with weak immune systems or who take drugs that weaken the immune system (like after a transplant operation or chemotherapy)
• People with cancer
• People with underlying illnesses such as diabetes, kidney failure, or liver failure”
Many of us are probably exposed to legionella but the disease is fairly uncommon.
Indeed.
And what about fragilized lung of whom are COVID 19 in CDC condition of use for tap water ?
Any support with wet condition make germs reproduce. And heat multiply exponetially the grow.
This is in every clinician manual no ?
What is the humidifier box if not a wet AND heat condition ?
The resmed manual warn against puting anything in water bowl (like essential oils : chlorine : vinegar / etc)
The same manual insist with need to purge, wash and dry the bowl each morning,
The same manual insist about washing pipe everyday
But who cares ? Do you really wash your circuits every day ? (for my part I don't)
This is only for normal conditions with people in Apnea syndroms forms not with lung diease.
For my part I no more use moisturing / humidifier bowl of CPAP.
Air we receive has nothing to see with medial dried air from hospital circuits. This air is the same that we breath in the room we stand. If feeling unconfortable with it, humidify the room is the solution, not the CPAP.
When I used humidifier (in winter as air is dryer in cold contitions) I had water in the pipe. This is not safe conditions.
To reply to someone whom experiment dry tongue at wake up :
This is mostly certainly because your mouth is open AND the CPAP pulses air directly in short circuit from nose to mouth... IMHO maybe should you try a chin strap, something like :
cdn.shopify.com/s/files/1/0021/7422/2394/products/New-Neoprene-Anti-Snore-Stop-Snoring-Chin-Strap-Belt-Anti-Apnea-Jaw-Solution-Sleep-Support-Apnea.jpg?v=1558099693
talk to you local CPAP provider or your specialist about it.
Anyway for me humidifier is not a good idea and especially for using CPAP in vent for COVID disease.
I alway balance benefice-risk, whaterver the fewest risk with a fresh and pure tap water changed every day. If humidity has any effect upon germs promotion, I would not use it. as simply as that.
Until a medical advice say the opposite...
Do anybody have a link to any publication about humidity meed in COVID vent ?
FJD