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 any material, long-term or laboratory tests. The tests are carried out by 1-2 independent consumers over a period of 7-14 days. The exact test conditions can be viewed in the test plan of the respective test report – click here to go directly to the test plan.

Manufacturers provide the tested products free of charge. We charge a one-off test fee for carrying out the tests. In addition, manufacturers pay an annual licence fee for the use of the Prüfengel seal. We also receive a commission for linking to manufacturers’ websites. These remunerations have no influence on our test results or ratings.

We guarantee transparency and a fair evaluation. For a detailed insight into our comprehensive evaluation process, please click here.

KNERST®
Down duvet

The down comforter from KNERST® offers maximum hygiene as it is certified in accordance with Oeko-Tex Standard 100 and Nomite , making it particularly suitable for house dust allergy sufferers. Perfect for winter, it is available in sizes 135 × 200 and 155 × 220 cm. The comforter also ensures an optimum body climate thanks to its temperature-regulating properties. Care is easy as the comforter is washable at 40 degrees and suitable for tumble drying. The even rectangular quilting not only gives it an attractive design, but also ensures that the down comforter from KNERST® is a high-quality, ethically responsible and versatile choice for discerning consumers, which is particularly cozy in the cold season.

  • high-quality materials
  • soft fabric
  • available in 3 degrees of warmth
  • Breathable
  • None

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 well protected

100 %

Points

Sustainability Packaging

Unnecessary packaging waste was avoided, the plastic film could still be replaced by environmentally friendly materials

90 %

Points

Package contents & scope

Down comforter

100 %

Points

Instructions for use

Written in German, easy to understand

100 %

Points

TOTAL

98

Points

Weighting: 20%
*Themaximum score is 100 points

The KNERST® comforter has been tested with regard to product protection, sustainability of the packaging, packaging contents and the availability of instructions for use. The KNERST® down comforter is protected by a sturdy cardboard box, with the comforter wrapped in a carrier bag with plastic film. Environmentally friendly alternatives are welcome. The enclosed instructions for use are written in German and are easy to understand. The customer orientation of KNERST® is underlined by this emphasis on language comprehensibility. Overall, the down comforter focuses not only on quality and protection, but also on user-friendliness, making it an attractive choice for discerning consumers.

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 design

100 %

Points

Processing

Very good workmanship

100 %

Points

Stability

Very stable

100 %

Points

Sustainability of the product

Good quality indicates a long service life, certified to OEKO-TEX Standard 100

100 %

Points

TOTAL

100

Points

Weighting: 20%
*Themaximum score is 100 points

The down comforter from KNERST® impresses with its appealing design, which has a positive impact on its visual appearance. The workmanship of this comforter is characterized by a particularly high quality, which results in a very good finish. The comforter is filled with high-quality down and feathers. The OEKO-TEX 100 Standard, NOMITE and Downpass certification are particularly noteworthy. Overall, the down comforter from KNERST® impresses with its aesthetic appeal, first-class workmanship, stability and sustainability. This not only makes it visually appealing, but also underlines the focus on quality.

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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Care

Very easy to care for, washable at 40 degrees and suitable for tumble drying

100 %

Points

Hygiene

OEKO-TEX Standard 100 certified, suitable for house dust allergy sufferers

100 %

Points

Sleep comfort

Very soft and warm

100 %

Points

Versatility

Is also suitable for warmer nights

100 %

Points

Temperature equalization

Is breathable

100 %

Points

TOTAL

100

Points

Weighting: 45%
*Themaximum score is 100 points

After receiving the down comforter from KNERST®, we were initially impressed by the quality of the material. The Oeko-Tex Standard 100 certification gave us the confidence that the comforter really does not contain any harmful chemicals. The filling weight of the comforter was comfortable and just right for a winter comforter – not too heavy, but still warming. The comforter proved to be extremely easy to care for, as promised. We could easily wash it at 40 degrees and even tumble dry it without the comforter losing its shape or quality. The even quilting not only ensured an attractive design, but also an even distribution of the feather and down filling, which made for a comfortable night’s sleep. While using the comforter, we noticed that the heat regulation was really very good. We always felt at a comfortable temperature, not too warm or too cold under the comforter. Overall, the KNERST® down comforter impressed us with its hygiene, pleasant filling weight, easy care, even quilting and excellent heat regulation. It is definitely an ideal choice for quality-conscious consumers who are looking for a high-quality and comfortable comforter. Thanks to Nomite certification, the down comforter is ideal for allergy sufferers.

Price/performance ratio

and ratings from consumers

Finally, we examine 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 examine 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 performance in the mid-price segment

80 %

Points

Rating cut

Not rated, as there are still too few customer reviews.

0 %

Points

TOTAL

80

Points

Weighting: 15%
*Themaximum score is 100 points

Prices of up to € 240 are charged on the Internet for equivalent products. Very inexpensive products are available from as little as €40 . The down comforter from KNERST® is therefore currently in the middle price segment with a price of € 119.99. For the quality and performance received, the price-performance ratio is very good.

Overall result

1. packaging & contents

20%

98 %

Points

2. product processing & appearance

20%

100 %

Points

3. in the practical test

45%

100 %

Points

4. price/performance & consumer ratings

15%

80 %

Points

TOTAL

97

Points

*Themaximum score is 100 points

Down duvet
 of the brand 
KNERST®
achieved
97
Points in our test and therefore passed. The test was carried out in the test period
04/24
and is stored in our database under the licence number
240305007
. 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 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.

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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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Our product evaluations are carried out exclusively through direct, on-site tests. This ensures a detailed and specific examination of the product properties. You can find more information about the test procedure here.

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