Our best-selling models are the IG-133A and IG-133DG negative ion generators.
The IG-133A has a metallic surface on top that attracts fine dust, pollen, mold, etc. and improves the
performance and ion output of the unit slightly. It is less susceptible to decreases in negative ion output when the room humidity is
low, such as in the winter, in an air-conditioned room, or in a desert environment.
The IG-133DG has a built-in DustGrabberTM circuit connected to two
dust collector surfaces that attract far more dust and pollution than the
To determine which negative ionizer that you need:
If you live in a dry environment (dry in any part of the year), we suggest that you order the
IG-133A or IG-133DG negative ionizer.
- If you have high air pollution, such as a smoker in the house, the
IG-133DG is a better choice.
- If you live in a humid environment year-round, you can order the original IG-133 negative ion
generator and save $20.00.
On the front edge of a table, nightstand, etc. about 2 - 3 feet from other objects.
In a bedroom, about 3 feet from your head is the best place.
Don't place it in a bookshelf, etc. The negative ions (and some dust) will be attracted to the inside of
the shelves, rather than going out into the room, where you want them.
There's several ways to generate negative ions. However, the way we do it is apply a safe, extremely
low-current, high voltage to microscopically small sharp points on the advanced ion emitter.
This is known as corona discharge, and we think we've perfected that
method. (It's the only way to generate a sufficient level of negative air
ions to a point where they can affect our mood). Without getting into a detailed
explanation and delving into electron physics, the electrons build up on the sharp points and are
ejected into the air, where they attach themselves to oxygen atoms. Since the electrons have a
"negative" charge, the molecules of oxygen with extra electrons become negative ions.
The voltage level and carefully engineered negative ion emitter design in our
ionizers optimizes the level of negative ions in the room while eliminating
unwanted ozone production.
We recommend trimming the eight fine wires on the standard SSE ion emitters every month or two
to maintain optimum negative ion output. Since the wires are about 2.5" long as shipped, and you can
trim them shorter than 1" and still have the ion output, how long they will last depends on how
much you trim off. You don't need to trim off much at all; about 1/16" is what we recommend.
Doing that, the SSE ion emitters should last two or three years or so. Replacement SSE emitters are
The idea behind trimming is to keep the ends of the wires sharp (as viewed under magnification).
The ends of all ion emitters wear, and as that happens, the ion output decreases.
The optional CFE emitter ($29.95) requires no trimming, and has a projected
lifespan of 5 years or more.
All ion emitters simply plug in to the top of the ionizers.
None. A negative ion generator is an ionizer. An ionizer is a negative ion generator.
However, all ionizers are certainly not equal. Our negative ionizers are long-life, high-ion-density units
which put out the optimum level of negative ions, for one thing.
A lot! Negative ions are molecules of oxygen (O2) in the air with an
extra electron. Ozone is O3, a molecule of oxygen consisting of three oxygen atoms
instead of the normal two.
Negative ions primarily reduce particulates (such as dust, pollen, mold spores,
bacteria, etc.) in the air;
but they usually aren't quite as effective as ozone for eliminating odors.
Ozone does not reduce the particulates in the air, but it is effective at
eliminating odors, even very strong odors.
Too much ozone is bad for you. Having said that, there are machines available that
intentionally generate ozone (we can supply them if you need one), but if the level of
ozone is properly adjusted, the ozone and the odors in the air cancel each other out and little if
any ozone remains.
Note that there are some machines sold as "negative ion generators",
that are actually ozone generators. We do NOT do that: all of our ionizers are genuine negative
Our customers tell us they do indeed get rid of odors, yes. See the testimonials.
While ozone is more effective for odors (ions are most effective for particulates such as dust,
pollen, cat and animal dander, and other allergens), a number of people who have purchased our
ionizers use them to get rid of cigar smoke, cat litter box smell, musty smells, and other odors.
If the odors come from particulates (microscopic particles) in the air, negative ions can indeed
eliminate the odorous particles, and so eliminate the odors.
We used an Alpha Labs ion counter with a digital readout. The reading at
approx. one meter (39") from the emitter is 1,000,000 negative ions per cubic
centimeter. These measurements are done in rooms with no fans and roughly 45%
humidity. Multiple readings were done at each location and for every model to
We test the total negative ion output out of the ion emitter per second
(approximately 90 to 100 trillion) using more than one method. However, these tests of the ion
output is a proprietary method that we do not share with the world. Worst case,
though, the ion output
figures on our site are only 5% off.
We used to not publish these ions per cubic centimeter figures, because that varies greatly with the
distance from the emitter, humidity, and air movement within the room. However, our ionizers do indeed emit a high and optimum level of
negative ions into a room. The coverage is approximately 400 square feet (e.g. a 20' by 20'
room). That's 4000 cubic feet, if you have 10' high ceilings.
Yes, we can supply two types of ion detectors if you are interested; however, both are relative
output units and while useful, do not have a meter readout.
1. One is a simple unit (model IDN-1); when it is held close to a high-density ionizer, the gas
lamp flashes. The closer you hold it to the ion emitter, or the stronger the ion source, the faster
it flashes. Normally, it is only $12.95 but it is FREE when purchased with any ionizer (see our order
2. The other (model IDS-2) is much more
sensitive. This very sensitive air ion detector simultaneously indicates the presence of both
negative and positive air ions. It can measure the relative ion intensity of negative ion generators
indoors, or even detect naturally-occurring negative ions outdoors.
- Two separate air ion detectors in one: a negative ion detector and a positive ion detector in
the same case.
- Will detect naturally-occurring levels of negative ions outdoors, such as enhanced levels due to
thunderstorms (even in
the distance), or other natural sources.
- Uses special LEDs (high-brightness light-emitting diodes) and reliable solid-state circuits for
a visual indication of the presence of air ions.
- See if your computer monitor, air purifier, etc. is generating harmful levels of positive ions.
- See if your air purifier or "negative ion generator" really generates
meaningful levels of negative ions. Most do not.
- The relative intensity of the ion field is indicated by the
brightness of the LEDs and how far away from the ionizer (or other ion source) the LED's glow.
- This compact, hand-held ion detector is attractive, durable, very sensitive, and operates for a
long time on one 9 volt battery (included).
- Costs much less
than any air ion detector or ion counter of similar sensitivity.
Although we provide a simple ion detector with every ionizer order, you really don't need an ion detector; you already possess two "detectors" that will show you that the unit is working:
your eyes and ears! In the instructions, it says:
"If you almost touch the ion emitter with your ear, you may
hear a very quiet hiss (if you have good hearing and there is no other sounds in
the room). You might also feel a very light breeze or movement of air while you are
near the tips of the ion emitter. When it is dark, turn out the lights, and after a few minutes
(when your eyes become accustomed to the dark) you may be able to see a small pinpoint blue glow on
the tips of the wires. The glow will intensify as you move your hand close, and disappear for a few
seconds if you touch it." The glow and sound indicate that the unit is working and putting out
high levels of negative ions.
A detector that measures actual ion levels in the air costs $600 or more. You can easily pay
several thousand dollars for a lab-grade ion detector.
No, our ionizers certainly do not generate any positive ions. Some other brands of ionizers generate the
negative ions by removing electrons from nearby oxygen atoms (thereby creating positive ions) and
transferring the electrons to nearby neutral atoms to generate negative ions. However, our ionizers
emit all the electrons directly from the ion emitter (instead of robbing them from other atoms).
These electrons transfer to oxygen atoms in the air, creating negative ions in large quantities
without also creating positive ions.
Some ionizers --even using the corona discharge method of generating ions--
that we've tested actually and intentionally produce positive ions,
without telling the end user. We do not agree with that way of doing business.
Other info is on other pages of this site. Please check the links to our other pages below.
We occasionally receive e-mails asking "how do your products compare to..." other
ionizers made by other manufacturers. We do not consider it ethical (nor would anybody believe us!)
to immediately say that, yes, ours are better than a certain brand. But the comments
from people who've bought them speak for themselves. And there's already enough info on this web
site that says why we believe ours are superior and longer-lasting.
We think ours will outlast any other ionizer available. That's a bold statement, but we believe
it is the truth for four reasons:
1. All ionizers have an ion emitter, and all emitters wear out. But our emitters are either
user-renewable (details on our site) or, for $29.95 extra, extremely long life. In any case, they
are replaceable; they just plug in.
2. We've seen many ionizers that build up a coating of dirt inside that makes them stop working
after a relatively short period of time. But ours are designed to have the dirt build up on the
outside so it can be cleaned off easily.
3. The electronics inside the ionizer is not only a reliable design, but quality built.
4. We still have, and use, the first ionizers we've ever made. And they still work like
the day we built them, even though they have been in almost continuous operation for years.
We have a 60-day trial period and five-year warranty on all our IG-133
series tabletop room ionizers (and most other products we offer).
Have you seen the false advertising yet? There are several misleading product ads or
product names that imply that their 'ionizer'
actually puts out a breeze consisting of a useful level of negative air ions, when that is not the case.
Before you buy, read their manual, catalog, package, etc. Do they say that their product
actually emits large numbers of ions externally?
Our products do.
Several other 'purifier' products claim to be ionizers, but are in fact really ozone generators. Yet
others do generate
negative ions, but do so internally; few ions ever leave their unit and go out into
People see other ionizer brands advertised, and naturally assume that the higher-priced ionizers
must be better than ours. So how can our negative ion generators be really good at these low prices?
Because we are the manufacturer of these ionizers, we sell them on this web site direct to the
customer, and that means there's no middleman to mark up the prices.
We could mark up our ionizer prices so that people would stop asking us that, but you really
wouldn't want that, would you? ;-)
Yes. We run our negative ion generators near computers and other sensitive
equipment. We have never had a problem, and are not aware of anyone who has.
We have IG-133A ionizers each with a DC-2 DustGrabber™ next to them right on top of our large
monitors, neutralizing the
positive ions from the monitors very effectively!
If you place your ionizer at least a foot or so away from a computer, you
should be safe. However, if you touch any ion emitter to
certain portions of sensitive electronic equipment, (such as the connectors on
the back of your PC or cables, etc. which you would never do, right?), the potential for damage
would be significant.
It is possible that if you place a negative ionizer too close to your
monitor, it might get dustier than normal, because the monitor's positive charge
can attract negatively charged dust.
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