PREFACE & WARNING:
Please note that for professional RF screening (i.e., against mobile phone transmission towers,
mobile phones, DECT portable phones, radar etc.), a hermetically sealed enclosure, a so-called
"Faraday cage", MUST be constructed. Various dubious suppliers do not inform their customers
about this fact for making quick money with the nescience of their customers.
For example, canopies WITHOUT proper grounding and inferior screening material is being offered
Often, suppliers even claim that screening a small part of a wall or a window in direction
of the radiation source (for example, a transmission tower) is always enough to provide
protection. This is total nonsense and WRONG and its only purpose is making the supplier
some quick money. These claims.
CONCLUSION: Be SURE to get are often additionally supported with misleading animations on the suppliers'
homepages. Don't get fooled! In the worst case, such a partial screening installation can even
WORSEN the situation due to reflections, which will give you an even HIGHER exposure than before!
Don't get fooled either by the popular, yet nonsensical claims that a Faraday cage protects completely
against "natural" radiation. This claim is also pure rubbish and its only purpose is to support
sales of inferior screening material!
Examples of equally useless products are stickers, ICs, salt crystals, or even ELECTRICAL appliances (how foolish can it get?) of any kind. Various lawsuits for fraud have been targetted against these suppliersour professional and FREE advice before you pour your money down the drain! Your health and that of your family, and also your money should be enough reason.
Electric and electromagnetic waves are everywhere in our modern environment. They form in any place
where electrical energy is being produced, distributed or consumed.
CONSIDERABLE exposure by LOW-FREQUENCY (LF) alternating fields in your home and at work is omnipresent.
They are mostly caused by "invisible" power cables in walls and ceilings of any building, but also
by appliances connected to those, like lamps, computers, TVs, fridges etc.. Also, regular power lines
(high-voltage lines) can cause EXTREMELY HIGH exposures even when hundreds of metres away.
In addition to the mentioned LF radiation, exposure to pulsed RADIO- (RF) or HIGH-FREQUENCY fields
is getting more severe in recent years. This is, among others, one of the consequences of our
modern communications technology. For example, the meanwhile almost 30000 mobile phone transmission
towers provide service for more than 20 million users of mobile phones throughout Germany. 40000 more
are already planned when the new UMTS standard (in the 2GHz band) goes online. Leading to, of course,
an even higher exposure to pulsed RF radiation.
The various currently available screening systems all differ vastly in their screening and cost efficiency.
They are made especially for the novice, but also for professional customers, and most of the time they
are far too sophisticated and thus far too expensive.
1.) Aaronia screening products always offer the highest possible screening performance. Many supplies
try to fool their customers with percentage figures. Specifications like "90% (10dB) or 99% (20dB) screening"
try to impress with an alledgedly high screening performance.
Serious architecture-biological exposure limits are mostly not even remotely met by such a screening
performance, depending on the intensity of the existing radiation!
But: Conformance with exposure limits or recommendations should always be the primary aim of
any screening effort! Mostly, only with screening performances of 99,999% (50dB) or higher!, these
requirements can be fulfilled. Though, often screening of more than 100dB, like with Aaronia
X-Dream, is required.
The number of '9's after the decimal point is of SIGNIFICANT importance if screening performance
(damping) is specified as a percentage!
Do not get fooled here, either!
|Table 1: Volume table in dB(A):|
|Example:||dB(A) reading:||Perception/impact:||Screening example:|
|Jet plane||130dB(A)||Hearing damage|
|Souped-up car||100dB(A)||UNBEARABLE||Assumed common electrosmog exposure|
|Circular saw||90dB(A)||UNBEARABLE||10dB screening (90%)|
|High-traffic motorway, daytime||80dB(A)||Hearing damage from 85dB||20dB screening (99%)|
|Main road, daytime||70dB(A)||Circulatory diseases||30dB screening (99,9%)|
|Main road at night||60dB(A)||VERY LOUD||40dB screening (99,99%)|
|Quiet residential area, daytime||50dB(A)||Communication problems.||50dB screening (99,999%)|
|Quiet residential area at night||40dB(A)||Issues with concentrating and learning||60dB screening (99,999.9%)|
|Ticking alarm clock||30dB(A)||Sleeping disorders||70dB screening (99,999.99%)|
|Whispering leaves||20dB(A)||Quiet||80dB screening (99,999.999%)|
|Normal breathing||10dB(A)||Very quiet||90dB screening (99,999.999.9%)|
|Silence||0dB(A)||Unnoticable to 1dB(A)||100dB screening (99,999.999.99%)|
Notice: When working with dB(A) figures, 10dB mean a change by a factor of 10. Examples: 100dB(A) noise is 10 times stronger than 90dB(A) or a hundred times stronger than 80dB(A) etc.
dB as a damping unit means a tenfold increase at 10dB, 20dB being ten times as much as 10dB, 30dB being 100 times as much as 10dB, etc.
© Aaronia AG, DE-54597
In our example, we will relate a common level of exposure to electrosmog with the noise
level of a "souped-up" car perceived as unbearable at 100dB(A) (See table 1).
So, if our screenings were made for damping noise instead of electrosmog, the following
sample calculation would apply:
Using a screening with 99% (20dB) efficiency, there would still be a noise level of 80dB(A). This would still be roughly equivalent to causing hearing damage (caused by 85dB(A)).
Even when using a screening of 99,9% (30dB) efficiency, a noise level of 70dB(A) would still be present. This would be equivalent to traffic noise next to a main road which would cause circulatory diseases.
In contrast, using a screening product with 99,999% efficiency (50dB as with Aaronia-Shield), a noise level of only 50dB(A) would remain. This would "only" be equivalent to the noise exposure next to a quiet road in a residential area.
Even more, a 100dB screening efficiency, like Aaronia X-Dream offers, would actually give you a "perfect" screening.
Using our example, the following situations could be derived:
Would you like to be exposed to the noise level of a motorway or main traffic road when using a regular 20-30dB (99% to 99,9%) screening canopy, or maybe rather tolerate a quiet residential road using an Aaronia high-performance screening canopy with 50dB damping (99,999%) made from Aaronia-Shield?
Would you like to be exposed to the noise level of a motorway or main traffic road when using a regular 20-30dB (99% to 99,9%) screening canopy, or maybe rather enjoy the "absolute silence" using a high-performance 100dB screening product like Aaronia X-Dream?
We think that your answer is obvious in both cases...
2.) Aaronia AG's screening products always offer protection both against EMF E-fields AND RF radiation. All Aaronia screenings can (and should) always be grounded and thus also offer optimal protection
against EMF, IN ADDITION to RF screening.
3.) Aaronia screening products always offer, especially in the higher GHz ranges, outstanding screening performance, while other products have severe problems giving any noteworthy performance
Screening in the higher GHz ranges is particularly important because current wireless networks
(WLan) already use these frequency ranges and are being installed at a dramatically fast pace (for example,
5,8GHz WLan). Also, future mobile phones and their transmission towers etc. will use ever higher frequencies. Thus, Aaronia screening products are future-proof already today and do not need
troublesome and costly replacement by new products in the future.
The secret behind the high screening performance of Aaronia products is our utilisation of
state-of-the-art materials and processing procedures, utilizing the newest research of leading
institutes and of Aaronia's own laboratories.
|Damping specifications for Aaronia high-performance shielding products|
|Product:||Frequency:||Damping in dB:||Damping factor:||Damping in %:||Application examples:|
Indoor and outdoor shielding
Textile applications (Canopies, clothing, curtains etc.)
Low and high exposure
Indoor shielding, measurement chambers
High to highest exposure
Notice: when using the dB unit, an increase of 10dB is equivalent to a 10fold increase
in strength. For example, 100dB is 10 times as strong as 90dB, or 100 times as strong
as 80dB, etc.
© Aaronia AG, DE-54597
For low exposure, we offer Aaronia A2000+ screening tissue. It offers an average damping of 20dB
while being very cost-effective, though it should only be used with really low exposures (for high
exposures, see Aaronia X-Dream®).
It is based on a fabric with interwoven stainless steel fibres and a special conductive coating.
The tissue is easy to handle and to lay. No damage is taken by folding this tissue. Further it
is immune to freezing temperatures, strong, does not decay or rot and can even be put inside
walls or concrete. As such it is also applicable for outdoor use and can replace regular
reinforcement fabric, thus saving additional cost.
Again for low exposures, but also high exposures, Aaronia-Shield® screening fabric has been developped.
It offers an amazing screening efficiency of approx. 50dB while still being highly transparent.
Especially in the higher GHz ranges (future mobile phones, radar, military radio), Aaronia-Shield®
still offers exceptional screening performance while several other "solutions" fail dramatically.
Aaronia-Shield® is based on an extremely thin polyamid fibre which is inseperably adjoined to a highly
efficient silver coating using a patented processing procedure. It can even be washed without
losing its screening characteristics. In conjunction with a specialized, highly efficient
weaving technique, a true high-efficiency screening fabric is formed, which can be
processed like regular fabric and still offers high transparency and air permeability.
Due to its high content in silver (20%), Aaronia-Shield® is, thanks to the so-called
oligodynamic effect, even anti-bacteriological, reduces body odours and even cigarette
smell in no time.
Additionally, Aaronia-Shield® is extremely transparent, permeable to light and air, and
anti-static. Aaronia-Shield® can be used to manufacture curtains, fly screens, canopies,
protective garments (for clinical, industrial or aerospace use), etc.
We offer complete canopy solutions made from Aaronia-Shield®. Hence you can furnish
beds with a highly efficient screening which, depending on the level of exposure, can even
conform with the rigorous Aaronia exposure limits.
If a high screening performance for rooms or buildings is needed or extremely strong exposures
are present, Aaronia X-Dream® high-performance screening fleece is the appropriate solution.
Aaronia X-Dream® can be applied like Aaronia A2000+, but offers, depending on frequency, an up
to 10.000.000 times!!! better screening of approx. 100dB.
Thus, Aaronia X-Dream® is the intelligent screening solution and offers a degree of protection
against RF AND EMF radiation otherwise only available to professionals in the industry, at an
Hence, it is even possible to construct bug-proof environments or high-grade metering
chambers. Also, Aaronia X-Dream® is probably the best solution to conform to rigorous
Aaronia exposure limits. Due to its extremely high screening performance in the high GHz range,
rooms screened with Aaronia X-Dream® are also future-proof for the coming exposures from 5,8GHz WLan etc.
|Aaronia USA, Exclusive North America Distributor - Kaltman Creations LLC|
651 Amberton Crossing, Suwanee, Georgia 30024 USA
Tel. 678-714-2000, Fax 678-714-2092
are registered trademarks of Aaronia AG
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