Comparison Aerocool AC120 AIR vs Chairman 610

— For the leader. The "director's" chair is designed not only to provide comfort to the leader, but also to emphasize his status and authority. Therefore, such models usually have a massive structure and larger dimensions than conventional chairs for staff, and also use more expensive materials (primarily leather and its analogues) — which ensures an appropriate solid design. Many executive chairs also have a specific shape with a slightly "failed" seat, headrests, etc.; all this is designed to increase the comfort of the seated.

— For staff. Armchairs designed primarily for ordinary office workers. On the practical side, for the most part, they are less comfortable than executive models — in particular, they are rarely equipped with head restraints (see below) and lumbar support. At the same time, the key difference lies in the fact that in this case the emphasis is not on design, but on practicality. So, the design uses mainly inexpensive, but sufficiently durable materials (fabric, mesh, etc.), the weight of the chairs is small, which makes it easy to move them from place to place, and the shape of the seat and armrests is usually chosen in such a way that It was convenient for the seated person to get up and sit down often. However, models for staff are sometimes so good and functional that they can be safely attributed to managerial chairs, so such options can have a dual purpose — for the ma...nager and staff.

— For visitors. The specificity of chairs of this type is that they, usually, are constantly in one place, while they are used by different people who have to sit for a relatively short time. Therefore, such models most often have bases in the form of legs or skids (see "Base design"), and their design as a whole is quite simple and rarely provides any additional adjustments. Nevertheless, in this class there are both simple products made of inexpensive materials that provide a minimum of comfort, and very solid-looking furniture, designed for richly furnished offices and not inferior in quality to the "director's" chairs.

— Children's. Armchairs designed for children have appropriate design features — reduced dimensions and a specific shape of the seat and back. In addition, among such models there are options in a rather bright original design — with colour drawings, an unusual shape of the backs and seats, etc.

— Gamer. Models created specifically for gamers stand out with a characteristic "aggressive" design, hinting at the seats of racers and pilots. However, they are often as comfortable as real racing seats, and the equipment includes at least a Tilt mechanism, and more often a more advanced solution such as a multiblock or synchro mechanism (see above). In general, this is a fairly advanced type of chair — but not cheap, respectively.

The highest weight that the chair is guaranteed to withstand with regular use — in other words, the maximum weight of a seated person, allowing you to constantly use the product in normal mode without fear of unexpected breakdown. Note that many models are able to endure short-term excess weight without problems, however, anyway, it is not worth overloading the structure (and even more so doing it all the time): off-design loads will significantly increase its wear, and breakdown can occur at the most unexpected moment.

Chair back height; for models with a variable back height (see "Adjustments"), as a rule, the maximum value is indicated.

The back height is measured from the seat to the top edge. In essence, this is the height of support available to the back. In some situations, you can not pay much attention to this indicator - for example, if the chair is intended for visitors and the role of the back in it is purely symbolic. However, if you have to sit in a chair often and for a long time, this point should also be taken into account. Ideally, it's best to try a few chairs "live" and find out which backrest height is most comfortable for you. If this is not possible, it is worth deciding which area on the body the back should reach (to the shoulder blades, to the base of the neck, etc.) and measure at what height from the seat this area is in a sitting position. And if you need specific support for the back of the head, you should choose among models equipped with head restraints (see above).

The width of the back at the shoulders of the intended wearer.

In order to recline as much as possible on the back, this width should be no less than the actual width of the user's shoulders. At the same time, for more or less comfortable use, a smaller back size is also sufficient — approximately corresponding to the width of the back in the area of \u200b\u200bthe shoulders (between the outer edges of the shoulder blades). Well, anyway, this parameter is, on the one hand, secondary, and on the other, very subjective. This means that in most cases you can not pay much attention to it, however, if you have already decided to choose the furniture that is the most suitable in size, it is better not to measure your own back, but to test several chairs and determine the most convenient value by experience.

Dimensions of the seat installed in the chair in width and depth (from the back to the front edge). For models with variable depth (see "Adjustments"), the maximum value is taken into account when the seat is pushed forward to the stop.

Most modern chairs are designed for the average adult, so paying attention to size is primarily for people of a large, or, conversely, miniature physique. In width, the average is considered to be 45 – 55 cm, the narrowest models are up to 40 cm wide, in the widest it can exceed 60 cm. Similarly, a depth of less than 40 cm is considered small, up to 60 cm — medium, more than 60 cm — large.

Seat height from the floor. The optimal height for a person of average height is considered to be 40 – 50 cm, however, this moment is largely subjective, and the comfort of the chair for a particular user depends heavily on his preferences and physique. Thus, many models have the ability to change the height in a certain range (see "Adjustments"). To choose, it is best to determine “live” at what height you are comfortable sitting, and find a model with the appropriate characteristics.

Lumbar support is not so much a function as an additional element of the chair's equipment. It is a protrusion in the lower part of the back, placed in such a way that it coincides with the natural deflection of the human spine in the lumbar region. Thus, the backrest provides additional support, makes it easier to maintain a natural posture and reduces the likelihood of problems with the spine.

Removable pillows can be both under the head (with their help, the back bend in the neck area is additionally regulated), and under the back (act as an auxiliary lumbar support). Basically, they come in pairs, but it happens that either a pillow for the head or only for the back is supplied with the chair. As a rule, removable pillows are fixed on the belts.

The ability to change the backrest tilt back and forth. Allows users to adjust the chair depending on how they prefer to sit: straight or slightly leaning back.