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General discussion

Which type TV has lowest EMF levels?

by hedacota Dec 21, 2006 12:17AM PST

My wife has sensitivity to emf. Does anyone know which type of tv has the lowest levels ........ CRT, LCD, Plasma, etc? We are hoping to purchase a 26" flat screen. Also, are some brands better than others re: EMF Thank you.

Discussion is locked

17 Posts
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CRT uses EM to do it's work.
by r. proffitt Forum moderator Dec 21, 2006 1:09AM PST

I'm surprised it's in your list since most that ask this will dismiss that from a list.

From there both plasma and lcd do not employ EM fields to direct electron beams so any field meter will read background EM when near the screen. But since it uses current there will be about as much EM as your average 100 Watt lightbulb.

Do lightbulb EM fields bother you?

Bob

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Confused. . .
by Coryphaeus Dec 21, 2006 1:41AM PST

EMF = ElectoMotive Force = electricity as in voltage and current flowing in a circuit. Unless you mean ElectroMagnetic Force. In that case CRT TVs use around 60,000 volts. LCD and plasma do not use it. But they are full of electromotive force.

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EMF in TV's
by hedacota Dec 21, 2006 3:26AM PST

Bob, Thank you for the clarification. I was refering to Electro Magnetic Fields. Based on your feedback it looks like our best bet is to go with an LCD type tv to avoid EMF. Thanks much

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Wayne here. . .
by Coryphaeus Dec 21, 2006 4:39AM PST
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Electro Magnetic Field=EMF in this case
by jcrobso Dec 21, 2006 5:19AM PST

"EMF = Electro Motive Force = electricity as in voltage and current flowing in a circuit." This is used for electric motors.

It's so much fun when anachronism's can have double meanings?

But CRTs are the only HDTVs that has any EMF and their almost gone.
In a 26"size LCD is your only choice. John

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EMF - Is TV size a variable?
by hedacota Dec 21, 2006 7:32AM PST

You seem to be knowledgeable in the electric/electronics arena. .Staying with a LCD tv, does the size screen have an impact on the amount of EMF (electromagnetic) levels? i.e., does a 32" or 40" have more than a 26"? Thank you. Your experise is appreciated

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LCD does not emit EMF. . .
by Coryphaeus Dec 21, 2006 8:53PM PST

The only set that emits EMF is CRT.

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EMF - Thanks
by hedacota Dec 21, 2006 10:14PM PST

Thank you for your assistance. I plan to purchase an LCD this weekend

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LCD tvs and reactions for sensitives
by ambersquirrel Mar 17, 2010 2:09AM PDT

I am a sensitive as far as EMFs and all the other "frying" waves that there are in our world... mobile phone masts etc. whatever the scientific names are for them.... !!
We have just bought an LCD tv as our area is about to go digital, so we have to update.
I cannot sit in the same room as the TV, infact even being a corridor and 2 doors away and the darned thing still gives me headaches, sore eyes, tingly skin and a dry throat. And that is with it off most of the time!
I suggest that you go to SEE the Tv you are thinking of buying rather than just ordering it.
You might also want to explore http://www.emfields.org/ and http://www.powerwatch.org.uk/contact.asp for helpful data.
We are looking at various devices to minimise the effects, one thing that may well help is an ioniser - tho some make more problems than they dilute!! The 2 sites above are full of this kind of information and reports.
Good luck - I'll keep my eye on this to see how you get on.
AmberSquirrel xx

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LCD tvs and reactions
by Roz321 Oct 4, 2010 12:46AM PDT

Just wondering if you have had any reactions related to inability to
sleep. We purchased a 50 inch plasma TV a couple months ago. I find myself
being more reluctant to watch it as much just before bedtime. Also I am
concerned about my husband watching a smaller flatscreen TV and then having
the computer on in front of him; he goes back and forth checking on football
or baseball games. I finally bought a Q link thing that plugs right into
the computer to help with EMF waves; got it from Sounds True company. He
does this in a fairly small study so is close to the TV which is on the wall.
I am very sensitive to frequencies. Thanks.

Roz321

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What is q-link?
by givemeaname Oct 4, 2010 3:00AM PDT

A gimmick!! It would make the HDD unuasble if it really worked. Not much besides a black hole, super collider, diamagnetic machine or a MRI that can mess with EMF. Do not confuse that plasma buzz with EMF. + radio frequencies & EMF are totally different, too stop RF you need a faraday cage.

For not watching a big tv right before you goto bed & then having trouble falling asleep, that is just how the eyes & brain works. The brain mostly thinks it is daytime so you stay up, if you want to stay up for a few days keep all the lights on at night & it tricks the brain, one can easily stay up 28-30hours by doing that. I stayed up 3 days with just 15 minutes sleep in that time.

For looking back and forth to another screen (stacking), taking the eyes off the computer screen, that is a good thing for the eyes & neck, helps stop/reduce eye neck strain.

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Please explain what you mean by EMF.
by JohnH23 Sep 22, 2014 7:35AM PDT

Please explain what you mean by EMF.
Electromotive force, electromagnetic radiation (i.e. light and radio waves), radio frequencies, or what?
--JohnH

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Electromotive force is the term for voltage and not current
by JohnH23 Sep 22, 2014 7:30AM PDT

Electromotive force is the term for voltage and not current and not magnetic or electromagnetic (Maxwell) fields. --JohnH

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No simple answer...
by WildClay Oct 4, 2010 3:30AM PDT

You want the lowest EMF, then go buy the set that draws the least current / is the lowest wattage as a rule of thumb, which would likely make the LCD set the best.

That said, if they have poor shielding around the power supply, or any high power component it could be putting out a lot of EM noise, even a wall wart has a measureble EMF around it.

Another rule of thumb, generally you get better quality end-to-end in higher priced units, a clean design, well spec'ed parts, placement and shielding all tend to be better in upper end electronics.

Again, it is a rule of thumb, not an absolute but if you have to take a stab in the dark, then I would go for a upper end unit from a well known name brand, that has one of the lower power ratings.

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You have a valuable wife if ...
by JohnH23 Sep 22, 2014 7:27AM PDT

You have a valuable wife if she can readily demonstrate sensitivity to environmental electromagnetic fields. Many scientific researchers would like to study her response to different field frequencies and levels. --JohnH

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electromagnetic hypersensitivity
by barbyd32 May 25, 2015 1:42AM PDT

Who are the scientific researchers who would like to study this? I can readily demonstrate my hypersensitivity to my LCD TV and other EMF's also. Barbyd32

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wrap her in tinfoil
by James Denison May 25, 2015 2:11AM PDT

and give her an old metal WW2 helmet.

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