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.

Dowinx
XXL office chair QL-66B3

Manufacturer’s product description

The Dowinx QL-66B3 XXL office chair we tested is aimed at users who place particular value on high seating comfort, stability, and generous dimensions . According to the manufacturer, it is designed for a maximum load of up to 180 kg and combines a wide seat with a large backrest. The features are complemented by an integrated 2-in-1 lumbar cushion with massage function, height adjustment via gas spring, a 360° swivel function, and smooth-running casters for various floor coverings.

In practical testing, the office chair impressed above all with its high level of seating comfort and sturdy workmanship. The generous dimensions offer plenty of space and support, while the massage cushion noticeably increases comfort during longer periods of sitting. The chair is stable, easy to move, and blends inconspicuously into both office and home office environments with its understated design.

There is room for improvement in the adjustment mechanisms of the armrests and headrest, which offer only limited adjustment options. In addition, the packaging material used could be made more sustainable, as the high proportion of plastic is no longer appropriate from an ecological point of view.

Overall, the XXL office chair is a comfortable, durable, and practical work chair with clear strengths in terms of seating comfort and stability. It is a compelling solution for users who value plenty of space, a high load capacity, and additional comfort.

  • Very generous seat
  • Very good seating comfort even during prolonged use
  • Integrated massage cushion
  • Smooth-running casters
  • Quiet and stable base
  • Limited adjustment options for the armrests and headrest
  • Use of plastic film

First impression

Packaging and contents

Here, the packaging is examined in more detail. Sustainability is becoming an increasingly important factor. In addition, sufficient protection of the product must of course be ensured. Is 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 the packaging. Sustainability is becoming an increasingly important factor. In addition, adequate protection of the product must of course be ensured. Is 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

Cardboard is sturdy, product adequately protected

100

Points

Sustainability of packaging

No unnecessary packaging waste; the plastic film protects the product components, but an environmentally friendly alternative would be desirable

80

Points

Package contents & scope

Complete

100

Points

Instructions

Clearly written in several languages and well illustrated

100

Points

OVERALL

95

Points

Weighting: 20%
*The maximum number of points is 100

The office chair’s packaging proved to be sturdy and well designed in our test. The robust outer carton generally offers reliable protection against transport damage, but did show a few scratches and small holes after transport. Inside, all parts are arranged compactly and securely . All components – from the backrest to the screws – are wrapped in plastic film. Although this provides effective protection against scratches, it does result in a high proportion of plastic. From an ecological point of view, the use of more sustainable materials would be desirable in order to reduce the amount of plastic. Despite the external damage to the packaging, all product components were complete , well and securely stowed, and showed no damage or scratches. The enclosed multilingual instructions were understandable and made assembly much easier. Overall, the packaging offers solid product protection and makes a good overall impression. However, the main potential for improvement lies in the use of packaging materials.

First time in hand

Product workmanship and appearance

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

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

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Visual appearance

Appealing design

100

Points

Workmanship

Very good workmanship

100

Points

Stability

Very stable

100

Points

Product sustainability

No information provided, but 30-day money-back guarantee, two-year repair service

90

Points

OVERALL

98

Points

Weighting: 20%
*The maximum number of points is 100

When unpacking and assembling, the XXL office chair makes an overall positive impression. The generously dimensioned and functional design conveys a solid, high-quality, and comfort-oriented overall impression. Visually, the chair fits into both classic office workplaces and home office environments where comfort is a priority. There are no noticeable flaws in the workmanship. The seams are neatly finished, the materials are evenly processed, and there are no sharp edges or rough transitions. The reinforced base, casters, armrests, and voluminous backrest appear stable and precisely manufactured. The components fit together perfectly, making assembly easy. Once assembled, the chair is stable and wobble-free. The generous seat and wide backrest underline its character, which is designed for comfort and high resilience. The manufacturer does not provide any information on sustainability, but the robust construction and solid workmanship indicate a long service life , which can have a positive effect on sustainability. In addition, the existing service and warranty conditions offer security and confidence when purchasing.

This is what our practical test revealed

Does the manufacturer deliver on its advertising promises?

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

Our practical test is the most relevant and therefore carries the most weight. Here, the product must undergo a wide range of criteria and tests. We check the functions and product promises of the test item.

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Ergonomics and seating comfort

High seating comfort with a sofa-like feel

100

Points

Functionality of the adjustment mechanisms

Reliable, smooth, and easy to use

100

Points

Rollers on different floor coverings

Even on all floor coverings

100

Points

Adjustability and comfort of the armrests

Very comfortable support surface, smoothly adjustable, only height-adjustable

90

Points

Comfort and adjustability of the headrest

Pleasantly padded, not flexibly adjustable

90

Points

OVERALL

95

Points

Weighting: 45%
*The maximum score is 100 points

The QL-66B3 office chair impressed in practical testing with its high level of seating comfort and solid workmanship. The generous, voluminous backrest offers a successful combination of supportive padding and comfort. This makes even prolonged sitting comfortable. The contoured seat cushion distributes body weight evenly and the integrated massage cushion specifically relaxes the lumbar spine. This noticeably increases comfort during longer work sessions. Overall , the chair is comfortable and provides good support. The adjustment mechanisms worked reliably. The height adjustment via the gas spring is smooth, the backrest can be locked in a limited range, and the 360° swivel function and casters run smoothly and evenly on carpet, laminate, and tile. The plastic casters are not completely silent, but they move quietly enough for everyday use. The armrests are stable and comfortable. They can be adjusted in height, but do not offer any further adjustment options in terms of width or angle. The softly padded headrest provides comfortable support for the neck, but cannot be adjusted or tilted, which limits the adjustment options.

Overall, the XXL office chair proved to be a very comfortable, stable, and functional work chair in the test. Particularly noteworthy are the generous seat, the ergonomic backrest, and the massage cushion, which specifically promotes relaxation. The limited adjustment options for the armrests and headrest are only minor drawbacks when purchasing this office chair.

Test plan

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

Price/performance

Finally, we examine how the product compares to the competition. Can it compete with the competition in terms of price and quality? Would we generally recommend it for purchase?

Finally, we examine how the product compares to the competition. Can it compete with the competition in terms of price and quality? Would we generally recommend it for purchase?

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Price/performance ratio

Very good performance in the mid-price segment

80

Points

TOTAL

80

Points

Weighting: 15%
*The maximum score is 100 points

Equivalent products are available online for prices ranging up to $499.99. Very affordable models are available starting at $89.99. The XXL office chair QL-66B3 from Dowinx is currently in the mid-price range at €239.99. Considering the quality offered, the robust workmanship, the high load capacity, and the additional comfort provided by the integrated massage cushion, the price/performance ratio is very good overall.

Overall result

1. Packaging & contents

20

95

Points

2. Product processing & appearance

20

98

Points

3. Practical test

45

95

Points

4. Price/performance ratio

15

80

Points

TOTAL

93

Points

*The maximum score is 100 points

XXL office chair QL-66B3
 of the brand 
Dowinx
achieved
93
Points in our test and therefore passed. The test was carried out in the test period
01/26
and is stored in our database under the licence number
251103003
. 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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