The Truth about Salt Crystal Lamps

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You should know about this too.

 

Lynn

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http://www.bright.net/~comtech/saltcrystallamps.html

 

The Truth about Salt Crystal Lamps

 

Salt lamps are indeed beautiful. But do they emit

meaningful levels of negative ions?

 

Having personally tested a popular brand of rock salt

crystal lamp in our lab, we can attest that it was all

but worthless as a generator of negative ions.

 

After measuring the negative ion output level from the

salt lamp, we took our sensitive negative ion detector

outdoors and measured a far higher lever of naturally

occurring negative ions than the salt lamp emitted.

 

If the salt lamp's negative ion output would have been

any lower, we could not have measured it. The salt

lamp put out such a small level of negative ions that

just taking a reading depleted the few negative ions

that it did put out, and then the ion detector stopped

indicating. We then had to remove the ion detector

from near the salt lamp for a few minutes before we

could again measure negative ions near the lamp. We

couldn't tell the exact level of ions.

 

With high-density corona-discharge ionizers, the ion

detector gives a far stronger reading, that does not

decrease as it did when trying to measure the ion

output from the salt crystal lamp. Moreover, the

intense level of negative ions from the

corona-discharge ionizer are detectable at a

considerably greater distance (about 10 feet or more)

than with the salt lamp (a few inches).

 

Negative ions measured outdoors with a thunderstorm in

the distance are much greater than we measured from

the salt lamp we tested. But still not as near as high

as the intense levels of negative ions from a

corona-discharge negative ionizer.

 

The bottom line: salt crystal lamps emit very low

levels of negative ions.

 

 

 

 

" Some salt lamp manufacturers claim that the natural

absorption of moisture and its subsequent release

through the heating effect of the lamp, releases

negative ions. Is this a fact? "

 

We don't believe that it necessarily does by the way

described above. Heat helps, but not that much,

according to our findings. We measured the ion output

only a few minutes after the salt lamp was plugged in,

while the salt was still cold. Our research indicates

that the photoelectric effect, rather than thermal

emission, is the main mechanism that is responsible

for the salt generating negative ions.

 

 

 

 

 

 

 

 

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