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Comparison Zirtal GT 90 BL black vs Best CHEF T-line 1100 IX 90 stainless steel

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Zirtal GT 90 BL black
Best CHEF T-line 1100 IX 90 stainless steel
Zirtal GT 90 BL blackBest CHEF T-line 1100 IX 90 stainless steel
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from $245.58 up to $335.96
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Product typetraditional (wall)traditional (wall)
DesignT-shapedT-shaped
Specs
Modesextraction / recirculationextraction / recirculation
Motor power240 W260 W
Flow of air (motor)950 m³/h1100 m³/h
Minimum noise level40 dB50 dB
Max. noise level66 dB
60 dB /66 dB intensive mode/
Number of speeds4
/+ intensive mode/
Number of motors11
Filtration
Grease filteraluminiumaluminium
Ability to install carbon filter
Carbon filter modelTRAOM0047
Filter indicator
Features
LightingLED lampLED lamp
Controlsrotary knobstouch controls
Smoke sensor (auto-on)
More specs
Display
Duct diameter150 mm150 mm
Height (min)54.5 cm86 cm
Height (max)85 cm101 cm
Width89.7 cm90 cm
Depth50 cm40 cm
Weight12.5 kg
Color
Added to E-Catalognovember 2021june 2020

Motor power

The power of the hood at maximum speed.

The more powerful the device, the more performant it is, usually. However, there is no rigid dependence here, and hoods of the same power may differ in actual performance. So it is worth evaluating power consumption in terms of power first of all: the lower this indicator, the more economical the device. And when evaluating performance, you need to look not so much at power as at the directly claimed flow of the air (see below).

Flow of air (motor)

The maximum flow of air or motor flow of air indicates the theoretical capability of the device. This parameter of the hood (motor) is measured during idle operation. By connecting the duct and working in the appropriate mode of extraction, the flow of air will be lower. However, high-performance motors will also give a high flow of air in extraction mode.

Minimum noise level

The volume at which the device operates in the quietest mode. Usually (but not necessarily) it is the minimum power mode.

The decibels in which the noise level is measured are non-linear units, so it is easiest to use comparison tables to estimate a specific value. Here is the simplest table for minimum noise in modern hoods:

— 20 dB. Almost inaudible. The volume of a whisper at a distance of 1 m, the sound background in an open field on a calm day.
— 30 dB. The whisper, the ticking of the clock. The maximum noise level allowed for residential premises at night.
— 40 dB. The volume of normal human speech. The maximum permissible sound background (permanent) for living quarters during the day.
— 50 dB. Conversation of several people in medium tones.
— 60 dB. Loud talk.
— 65 – 68 dB — background noise on a city street, a vacuum cleaner engine at a distance of 2 – 3 m. The highest noise level among modern hoods is typical for powerful performant models.

When choosing according to this indicator, note that, other things being equal, a quieter device will, accordingly, cost more.

Max. noise level

The level of noise produced by the hood in the loudest mode of operation. Usually (but not necessarily) it is the maximum power mode. It affects the comfort during operation of the device, so quiet hoods will be more preferable, but also more expensive.

The decibels in which the noise level is measured are non-linear units, so it is easiest to use comparison tables to estimate a specific value. Here is the simplest table for the values relevant in this case:

— 35 dB. The volume of a conversation in an undertone (but not a whisper). The lowest maximum noise value in modern hoods. Devices with such characteristics are almost guaranteed not to cause inconvenience: such noise is often blocked by other sounds, for example, the background noise of the street in an open window.
— 40 dB. The volume of a normal conversation. The maximum noise level allowed in a residential area during the day. If the hood is bought for home use, and it is supposed to be turned on often and for a long time, the noise level in the selected device shouldn't exceed this indicator.
— 50 dB. Conversation volume at medium tones.
— 60 dB. Raised conversation.
— 70 dB. Sound background on a busy street, in a crowd of people talking loudly, the sound of a vacuum cleaner motor at a distance of 2 – 3 m.
— 75 dB. Scream or loud laughter at a distance of about a metre.
— 78 – 79 dB. Loud mechanical alarm clock, motorcycle o...r truck engine. The highest level in modern consumer-grade hoods.

Note that the actual comfort of using the device depends not only on the volume but also on the timbre (tonality) of the noise: for example, a low, even rumble is generally perceived easier than high frequencies with clanging notes. If the hood installation is unsuccessful, the actual noise level may be higher than stated in the specifications. For example, additional noise can be caused by the hum of air in the ducts or rattling from the contact of the vibrating body with the wall. However, when choosing, it is worth focusing on the noise level claimed in the specifications.

Number of speeds

The number of speeds at which the hood can operate.

The more speeds, the more accurately you can adjust the device's operating mode to a specific situation. At the same time, the vast majority of modern hoods have only three speeds which are enough for most occasions.

Carbon filter model

The model of the carbon filter compatible with the hood. For more information about such a filter, see "Ability to install carbon filter". Here we note that the carbon filter is not always supplied in a kit, and its service life is limited, periodic replacement is required. Anyway, the data on the filter model makes it much easier to find.

Filter indicator

The presence of an indicator signaling the clogging of the filter and the need to clean/replace it. Both grease and carbon filters can be equipped with such an indicator (see above for the filters themselves). One of the options for such an indicator is a pattern applied to the filter surface itself, and a signal about the need for replacement may be the disappearance or, conversely, the appearance of the pattern. A more advanced option is a timer that tracks the total operating time and gives a signal when the filter resource is exhausted.

Controls

The control method provided in the hood.

Push-buttons. The most popular control method in modern hoods can be provided in devices of any functionality and price category — from low-cost models, where buttons directly control the motor, to high-end solutions with advanced electronic circuits.

Rotary knobs. Control with rotary knobs, sometimes supplemented by buttons or touch sensors. A rather specific option found mainly in high-end hoods, where rotary knobs are part of the design.

Slider. Control using the lever moved on the special panel. Usually, only power is regulated in this way: the farther the slider is from the neutral position, the more air the hood draws. A fairly universal control method, found in hoods of all price categories.

Touch controls. Control using touch panels is considered a sign of expensive high-end hoods. It is because it makes sense to use such panels mainly with advanced control electronics and they are poorly suited for low-cost devices. From a practical point of view, the touch controls are remarkable for their ease of use and ease of cleaning: a light touch is enough to give a command, and the panel itself has no slots or protrusions, making it easy to clean dirt.

Smoke sensor (auto-on)

System of hood automatic start. It is based on a sensor that monitors the presence of kitchen fumes in the air — when a certain concentration of smoke, steam, fat particles is detected in the air, the sensor gives the command to turn on. Such a system not only relieves the user of the need to turn on the device manually but also helps to save energy since the hood turns on only when it is really needed. In addition, not only automatic switching on but also automatic switching off can be provided — after a certain time (most often 5 minutes) after the sensor has ceased to detect pollution in the air.
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