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.

1ELEMENT
Filter for Kärcher hoover

The filter for Kärcher hoovers from 1ELEMENT is a high-quality replacement filter that is suitable for a wide range of Kärcher hoovers, including the WD 1, WD 2, WD 3 and many more. This HEPA filter protects against fine dust in the exhaust air and ensures that your hoover retains its full suction power. The filter is suitable for both wet and dry vacuum ing and is therefore very versatile. In our tests, the filter impressed us with its excellent filter performance and ease of use. However, it would have been desirable if the filter’s efficiency when vacuuming liquids had been better.

  • Outstanding filtration performance
  • Simple installation
  • Compatibility with many Kärcher models
  • Money-back guarantee
  • Slight weakness during wet vacuuming

The test

General information

We took a close look at and tested the product in a practical test. In the following, we take a closer look at the features and impressions. From the packaging, materials and quality to the range of functions and handling, the product is subjected to our test procedure.

To give you a quick overview, we work with a points system. The maximum achievable score per area is 100 points. The final overall score is calculated from the average of all tested features, taking into account the respective weighting. For a detailed insight into our comprehensive evaluation process, which forms the basis of all our product ratings, please click here.

The first impression

Packaging and contents

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 guaranteed. Are the contents of the packaging complete and does the manufacturer make it as easy as possible for me to use the product straight away?

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 guaranteed. Are the contents of the packaging complete and does the manufacturer make it as easy as possible for me to use the product straight away?

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Product protection

Carton is sturdy, product sufficiently protected

100

Points

Sustainability Packaging

No unnecessary packaging waste, no use of plastic

100

Points

Package contents & scope

3 filters with screw plugs

100

Points

Instructions for use

On the outer carton in German

100

Points

TOTAL

100

Points

Weighting: 20%
*Themaximum score is 100 points

The filters for Kärcher hoovers from 1ELEMENT offer comprehensive product protection without unnecessary packaging waste thanks to compact and plastic-free packaging. The cardboard box is fully recyclable and contributes to sustainability.
The packaging contains 3 cartridge filters with screw caps.
The instructions for use are printed in German on the outer carton.
In this case, the product was fully protected and the filters were therefore in perfect condition.
The product makes a very good impression at first glance.

The first time in your hand

Product processing and appearance

Before we start the practical test, we take a close look at the workmanship of the products. How high quality are the materials used? Are the look and feel satisfactory?

Before we start the practical test, we take a close look at the workmanship of the products. How high quality are the materials used? Are the look and feel satisfactory?

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Visual appearance

Attractive and stable design

100

Points

Processing

Very good workmanship

100

Points

Stability

Dimensionally stable

100

Points

Sustainability of the product

No details, but money-back guarantee

80

Points

TOTAL

95

Points

Weighting: 20%
*Themaximum score is 100 points

The filters for Kärcher hoovers from 1ELEMENT impress with their attractive and robust design. A closer look reveals the high-quality workmanship of the filters without any visible defects such as holes or notches. The materials used make a stable and robust impression, which suggests that the filters will have a long service life even with intensive use. The high-quality workmanship therefore indicates a certain longevity , which speaks in favour of sustainable use . In addition, a high level of customer satisfaction can be ensured thanks to the up to 100-day money-back guarantee.

This is what our practical test showed

Does the manufacturer keep its advertising promises?

Our practical test has the highest relevance and therefore weighting. Here, the product has to undergo a wide range of criteria and tests. We check the functions and product promises of the test article.

Our practical test has the highest relevance and therefore weighting. Here, the product has to undergo a wide range of criteria and tests. We check the functions and product promises of the test article.

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Accuracy of fit

Filter fits perfectly

100

Points

Dust retention capacity

Filter has absorbed all the dust

100

Points

Odour test

Very light odour at the beginning

90

Points

Moisture test

No change in suction power

100

Points

Visual inspection for filtration performance

No visible defects

100

Points

TOTAL

98

Points

Weighting: 45%
*Themaximum score is 100 points

The filter from 1ELEMENT fits perfectly and is easy to insert and remove. The filter sits firmly and securely and does not need to be readjusted. There are no noises or air leaks.
The test with the Kärcher WD 2 Plus showed that no dust enters the room air . The filter absorbed all the dust and the room was completely dust-free after vacuuming.
The odour from the filter is very light at first , but barely perceptible and quickly dissipates . This odour is not annoying or unpleasant.
The filter shows no structural or olfactory changes and works in the hoover without impairing the suction power. After the moisture test , the filter shows no visible defects and the filter performance is flawless. There were no blockages and the dirt was filtered efficiently.
Overall, the filter from 1ELEMENT is a high-quality and cost-effective alternative to the original filters and offers a reliable solution for a clean indoor climate.

Test plan of the Prüfengel Institute

You can find a detailed insight into the evaluation criteria of the practical part of the test and the distribution of points here. If you are also interested in the evaluation of our other test criteria, please read our document on the evaluation process.

Price/performance ratio

and ratings from consumers

Finally, we analyse 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 look at the consumer reviews and check whether the critical and positive reviews are actually justified.

Finally, we analyse 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 look at the consumer reviews and check whether the critical and positive reviews are actually justified.

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Price / performance ratio

Very good

100

Points

Rating cut

4.7 out of 5.0 on Amazon

85

Points

TOTAL

93

Points

Weighting: 15%
*Themaximum score is 100 points

On the Amazon platform, consumers rate the product with an average of 4.7 stars. Many customers like the fact that the delivery includes 3 round filters and 3 screw plugs, which is a practical and cost-effective set. The easy installation and excellent filter performance for allergy sufferers are also emphasised. However, some users criticise the fact that the filters are only suitable for holding liquids to a limited extent.

Prices of up to €23.99 are charged on the internet for equivalent products. Very cheap products are available from as little as €15.19 . The filter for Kärcher hoovers from 1ELEMENT is therefore currently in the lower price segment with a price of €10.99. For the quality and performance received, the price-performance ratio is very good.

Overall result

1. packaging & contents

20%

100

Points

2. product processing & appearance

20%

95

Points

3. in the practical test

45%

98

Points

4. price/performance & consumer reviews

15%

93

Points

TOTAL

97

Points

*Themaximum score is 100 points

Filter for Kärcher hoover
of the brand
1ELEMENT
wasrated with an overall score of
1,2
and thus successfully qualified for our test seal. The test was carried out during the test period
06/24
and is storedinour database under the licence number
240522005
.Further information on our test procedure can be found at www.pruefengel.de/testverfahren.
Filter for Kärcher hoover
of the brand
1ELEMENT
achieved
97
Points in our test and therefore passed. The test was carried out in the test period
06/24
and is stored in our database under the licence number
240522005
. 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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