Electromagnetic Field (EMF)

General Discussion on any topic relating to CPAP and/or Sleep Apnea.
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Aussiegrouch
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Electromagnetic Field (EMF)

Post by Aussiegrouch » Fri Aug 07, 2009 3:49 am

Hi,
I have been doing some checks on EMF emanating from my Respironics M series with A Flex.
Using a TriField meter I detected the following results measured on the output side of the machine ie; on the humdifier side:
5 inches from the machine 30mG (Milligauss)
10 inches from the machine 15mG
24 inches from the machine 10mG
As anything above 3mG is considered significant by some researchers, I was wondering if anybody on the forum had access
to the specification EN60601-1-2 2nd edition mentoned in the Respironics manual as being the specification that the machine meets for Electromagnetic Compatibility.
Cheers
Graham

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harry33
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Re: Electromagnetic Field (EMF)

Post by harry33 » Fri Aug 07, 2009 11:03 am

interesting, but have you checked electric blankets?
australian,anxiety and insomnia, a CPAP user since 1995, self diagnosed after years of fatigue, 2 cheap CPAPs and respironics comfortgell nose only mask. not one of my many doctors ever asked me if I snored

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GumbyCT
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Re: Electromagnetic Field (EMF)

Post by GumbyCT » Fri Aug 07, 2009 11:22 am

Does this help?
http://journals.iranscience.net:800/www ... 307emc.pdf

I know I can't turn on a radio even when my machine is turned off, just plugged in is enuff to cause interferance.

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Re: Electromagnetic Field (EMF)

Post by Handgunner45 » Fri Aug 07, 2009 11:40 am

I am quite sure that the standard you mentioned deals with the reaction of the machine to EMF as apposed to the emission of EMF from the machine. But I could be wrong....more research would be needed.
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sepool
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Re: Electromagnetic Field (EMF)

Post by sepool » Fri Aug 07, 2009 12:00 pm

Aussiegrouch wrote:Hi,
I have been doing some checks on EMF emanating from my Respironics M series with A Flex.
Using a TriField meter I detected the following results measured on the output side of the machine ie; on the humdifier side:
...
I am curious - is your humidifier the DC-compatible unit, or the older AC one? I would expect a lot higher reading from the older AC unit.

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Re: Electromagnetic Field (EMF)

Post by hobbs » Fri Aug 07, 2009 12:18 pm

Image

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6PtStar
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Re: Electromagnetic Field (EMF)

Post by 6PtStar » Fri Aug 07, 2009 12:41 pm

I never thought about my cpap generating a EMF. I was told not to get my pacemaker any closer than 18" to a EMF close to what you are reading. Now I am going to have to be a bit more careful and not get to close and another thing to put on my list of questions for my Doc. So far it has not set it off or shut it down that I know of.

Thanks for the info, I think!!

Jerry

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Aussiegrouch
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Re: Electromagnetic Field (EMF)

Post by Aussiegrouch » Fri Aug 07, 2009 4:11 pm

Handgunner45 wrote:I am quite sure that the standard you mentioned deals with the reaction of the machine to EMF as apposed to the emission of EMF from the machine. But I could be wrong....more research would be needed.
According to the Respironics manual the the environment EMF is covered in Electrmagnetic Immunity specs IEC61000.
Thanks I will need to study the report.
harry33 wrote:interesting, but have you checked electric blankets?
As I don't use them I haven't, but I have seen documentation that conventional blankets reach as high as 40mG measured 5cm from the surface and positive coefficient low magnetic blankets drop this level down to 2.7mG.
sepool wrote:
Aussiegrouch wrote:Hi,
I have been doing some checks on EMF emanating from my Respironics M series with A Flex.
Using a TriField meter I detected the following results measured on the output side of the machine ie; on the humdifier side:
...
I am curious - is your humidifier the DC-compatible unit, or the older AC one? I would expect a lot higher reading from the older AC unit.
[/quote]

It is the DC-compatible unit.

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junie
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Re: Electromagnetic Field (EMF)

Post by junie » Fri Aug 07, 2009 4:52 pm

I didn't know this no one even told me, All my doctors know I have a pacemaker, This scares me it really does, Thank you so much
for the information. I'll have to tell my doctor.

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Aussiegrouch
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Re: Electromagnetic Field (EMF)

Post by Aussiegrouch » Fri Aug 07, 2009 8:01 pm

Hi again,

Even though my testing was rudimentary and not conducted in a Special Anechoic Chamber which blocks any ambient EMF, I checked the ambient EMF in my bedroom and it measured about 1.5mG, so one could reduce the figures in my previous post by about 1-2mg.
I have an electric bed (to raise and lower the bedhead etc) and when I placed the meter on the bed I was surprised to see a reading of 25mG when the motor was in standby mode. (The tests on the Respironics was done with the bed turned off.)
I thought that prudence should be the order of the day and turned it off. Even though having lived for 71 years I doubt that any health implication of these results can now have any problem for me!

Cheers
Graham

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Re: Electromagnetic Field (EMF)

Post by Goofproof » Fri Aug 07, 2009 9:24 pm

I'll use the six foot hose instead of the 18 inch one, I was worrying why I had to set the machine on my chest. Odd's are I get most of mine from these two 24" monitors 20 inches from my face.

As high as my electric bill is, i probably glow in the dark. Jim
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chet
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Re: Electromagnetic Field (EMF)

Post by chet » Fri Aug 07, 2009 10:01 pm

Aussiegrouch,thanks for the info.I knew the machine put out allot of EMF when I tried to use my AM radio one night. I haven't read much on the subject lately, the article I read talked about clock radios and there placement next to the head , I believe EMF is a possible health hazard.
Please post any findings you may have.

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Aussiegrouch
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Re: Electromagnetic Field (EMF)

Post by Aussiegrouch » Fri Aug 07, 2009 10:41 pm

chet wrote:Aussiegrouch,thanks for the info.I knew the machine put out allot of EMF when I tried to use my AM radio one night. I haven't read much on the subject lately, the article I read talked about clock radios and there placement next to the head , I believe EMF is a possible health hazard.
Please post any findings you may have.
I moved my clock radio when I found that it put out 40mG at 5 inches and 10mG at my head on the pillow.

Of course one can get carried away by all of this when there may not be anything to worry about!!

BUT, a level of 3mG creates an approx current in the body of 1 billionth amp per sq cm and some researchers say that any increase above this level could be detrimental.
Cheers
Graham

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Re: Electromagnetic Field (EMF)

Post by john5757 » Sat Aug 08, 2009 10:11 am

I have heard about level of 3mG may create a problem but I have not heard why they came to this conclusion. I use Electromagnetic Fields to help me to hear buy using Electromagnetic fields modulated by a audio signals with the T-coils that are installed in my hearing aids and in my cochlear implant. However I am sensitive to Electromagnetic interference. Dimmers in home and florescence lights creates a great deal of Electromagnetic radiation as well in my car that I drive with all the electronic engine controls that came with the car and that will make using T-coils unusable. I also know that the Earth magnetic field, which is about 500 milligauss which is DC which we are constantly exposed is not a big deal either. I have also used a induction loop at work to help me hear on the phone and I move all the computer CPU units on the floor as not to cause Electromagnetic interference when using the T-coils. I use Electromagnetic Fields to my advantage and not to be overly concerned about health risk in what helps me to my advantage. But what about RF radiation from cell phones for example? Some cells phones are a real signal jammer with my hearing aids beeing on the ear as well.

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Re: Electromagnetic Field (EMF)

Post by ems » Thu Oct 17, 2013 12:55 am

Old thread - 2009.
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