About Us

Prüfengel offers authentic consumer tests in which real users share their experiences with products. Our tests are based on practical applications in everyday life and reflect the opinions of consumers. As we focus on consumer tests, we do not carry out material, long-term or laboratory tests. Our aim is to provide honest feedback to help you make a purchasing decision. For a detailed insight into our comprehensive evaluation process, which forms the basis of all our product reviews, please click here.

ISOTRONIC
Ioniser

The ISOTRONIC ionizer made a very good impression in our test. As well as being easy to install in the socket, it impresses with its odorless and silent operation. The ionizer not only repels pests such as dust mites or bed bugs, but also purifies the air, as the ion technology releases several negatively charged ions that are supposed to purify the air. In addition, the technology used does not require the use of additional chemicals, which makes it safe for animals and people in the household.

Advantages

✅Triple protection
✅No use of chemicals
✅Silent
✅Easy to install/use
✅Family-run company

Disadvantages

❌blue LED can be unfamiliar when sleeping (especially if you have a very dark bedroom)

The first impression

Packaging and labeling

ℹ️ Here we take a closer look at packaging. Sustainability is becoming an increasingly important factor. In addition, adequate protection of the product must of course also be ensured.

CriterionRemarkScore achieved*
Product protectionCarton is sturdy, product sufficiently protected100 points
Sustainability PackagingUnnecessary packaging waste was avoided, items were packed compactly – no use of plastic95 points
Product labelingCE marking available100 points
OtherHigh-quality packaging, also suitable as a gift100 points
Total99 points
Weighting: 15%
*The maximum score is 100 points
Verpackung des Ionisators von ISOTRONIC Test
Packaging of the ionizer

The ISOTRONIC ionizer arrived in a typical shipping box for our test. The box was undamaged and easy to open by removing the adhesive strip. The box contained the ionizer, which was wrapped in paper, as well as detailed operating instructions in 9 languages. This packaging method protects the product from scratches and dirt! In this case, the product was fully protected and the ionizer was therefore in perfect condition.
The packaging of the air purifier is completely recyclable.
The first impression of the ionizer is very good, as neither the product nor the packaging used was damaged.

After unpacking

Package contents and instructions

ℹ️ Most people’s first impression after unpacking is immediately memorable. Are the contents of the package complete and does the manufacturer make it as easy as possible for me to use the product straight away?

CriterionRemarkScore achieved*
Package contents & scopeIonizer and operating instructions included100 points
Instructions for useWritten in over 9 languages (including German), easy to understand100 points
Contact informationCan be found on the box – unfortunately no customer hotline given90 points
Total97 points
Weighting: 15%
*The maximum score is 100 points

After unpacking, there were two things on the kitchen table. Firstly, the ionizer, which can simply be plugged into a socket, and an instruction manual, which is supplied to the customer as a reference book.
Instructions for using the product can be found on the packaging and in the operating instructions. The contact information can be found on the box and the e-mail address can be obtained by scanning a QR code.
All in all, this is a very good way to send a product.

The first time in your hand

Product processing and appearance

ℹ️ Before we start the practical test, we take a close look at the product processing. How high quality are the materials used? Is the look and feel satisfactory?

CriterionRemarkScore achieved*
Visual appearanceVery good visual appearance100 points
ProcessingVery good workmanship, no edges97 points
StabilityProduct appears very stable98 points
Sustainability of the productNo information on sustainability, but attention was paid to waste avoidance in the packaging72 points
Total92 points
Weighting: 20%
*The maximum score is 100 points
ausgepackter Ionisator von ISOTRONIC
Unpacked ionizer from ISOTRONIC

The ionizer from ISOTRONIC for makes a very good visual impression in our test. It has rounded corners and has no manufacturing defects. The casing of the ionizer is made of plastic, which is very comfortable to hold. The product also impresses with its low weight and sturdy workmanship. The product cannot be bent and retains its shape.
Information on sustainability can only be found for the packaging of the ionizer, as care was taken not to use any plastic. However, the manufacturer gives a two-year guarantee on the product.

This is what our practical test showed

Does the manufacturer keep its advertising promises?

ℹ️ Our practical test is the most relevant and therefore the most important. Here, the product has to undergo a wide range of criteria and tests. We check the functions and product promises of the test article.

CriterionRemarkScore achieved*
InstallationEasy installation, simply plug into the socket – done100 points
NoisesNo perceptible noise100 points
Effectivenesswas tested and confirmed by the University of Milan – also subjectively better air with less odor100 points
Disturbance of sleepPossible interference from LED light, especially in very dark bedrooms (a matter of getting used to)71 points
Total87 points
Weighting: 30%
*The maximum score is 100 points

We really enjoyed using the ISOTRONIC ionizer during the test. You can simply plug the ionizer into a socket to put it into operation. No further programming or settings are required for it to work.
As we installed the ionizer in the bedroom, we also tested whether the ionizer does not emit any audible noise for people, as stated. We can fully confirm this, as our tester was unable to hear any aud ible noise from the product despite having good hearing.
The effectiveness of the ionizer has been confirmed by the University of Milan. The manufacturer also explicitly points this out in the instructions.
However, the LED light was very bright for the tester, as he was only used to sleeping in dark rooms. After several nights, however, these initial difficulties subsided .
A great product all round.

Price/performance ratio

and ratings from consumers

ℹ️ Finally, we look at how the product compares to the competition. Can it keep up with the competition in terms of price and quality? Would we generally recommend buying it? We also examine consumer ratings and check whether the critical and positive reviews are actually justified.

CriterionRemarkScore achieved*
Price / performance ratioVery good price-performance ratio95 points
Rating cutNot meaningful, as only a few customer reviews are available
Total95 points
Weighting: 20%
*The maximum score is 100 points

Prices of up to €149.99 are charged on the Internet for equivalent products. Very inexpensive products are available from as little as €19.69. The air purifier from ISOTRONIC is currently in the lower price segment with a price of €34.95. The price ratio is very good for the quality and the range of services you get.

Overall result

WeightingScore achieved*
1. packaging & labeling15%99 points
2. package contents & instructions15%97points
3. product processing & appearance20%92 points
4. in the practical test30%87 points
5. price/performance & consumer ratings20%95 points
Total93 points
*The maximum score is 100 points
Ioniser
of the brand
ISOTRONIC
achieved
93
Points in our test and therefore passed. The test was carried out in the test period
10/22
and is stored in our database under the licence number
220912142
. Further information on our test procedure can be found at www.pruefengel.de/testverfahren.

The practical tests are based on careful observations and do not include long-term or laboratory tests. The test judgements reflect the personal impressions and opinions of the testers who try out the products in everyday use. We would like to emphasise that these evaluations do not claim to be exhaustive and may reflect both subjective and objective impressions. The evaluations are made to the best of our knowledge and belief, without any liability being assumed for the accuracy or completeness of the test results. It is important to note that our tests are not based on legal requirements, medical effects or specific ingredients of the products. We rely on the advertising claims and information provided by the manufacturers, but use of the information is always at your own risk. Our efforts are aimed at ensuring a serious and thorough testing procedure, which has been developed in a long and professional process in close co-operation with our testers.

The practical tests are based on careful observation and do not include long-term or laboratory tests. The test ratings reflect the opinion of our experts and are based on careful analysis. We would like to emphasize that these evaluations do not claim to be exhaustive and reflect both subjective and objective impressions. The assessments are made to the best of our knowledge and belief, without any liability being assumed for the accuracy or completeness of the test results. It is important to note that our tests are not based on legal requirements, medical effects or specific ingredients of the products. We rely on the advertising claims and information provided by the manufacturers, but use of the information is always at your own risk. Our efforts are aimed at ensuring a reputable and thorough testing process, which has been developed in a long and professional process in close cooperation with our experts.

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Evaluation process

You can find a detailed insight into our evaluation process, which forms the basis for our product ratings, here:

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