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.
Display
The hood has its own display. Usually, this is the simplest
LCD screen for two or three characters, sometimes with additional indicators. However, even such a screen makes device control more convenient and visual: it can display the current operating mode, information about the sleep timer (see Sleep timer), the status of filters (see Filter indicator), etc.
This function rarely is used in inexpensive hoods with the simplest functionality. Therefore, the display is usually a sign of an expensive and advanced model.
Duct diameter
The duct diameter characterizes the size of the hood outlet to which the ducts are connected. The standard is either
120 mm or
150 mm. In many cases, an adapter from one diameter to another can additionally be included with the device. However, when replacing the hood with a new one, it is still better to operate with the existing pipe diameter and not use adapters.
Height (min)
The minimum height of the entire hood structure is from the lower edge to the upper part of the body (the point of connection of the external air duct). This parameter is indicated only for hoods with an adjustable design that allows you to change the height. Pay special attention to the minimum height if the device is planned to be installed in a kitchen with a low ceiling. In this case, it should be assumed that the optimal height of the air intake above the hob is 60-80 cm, and between the hood body and the ceiling, a headroom is required for the air duct. With a low ceiling, a hood that is too large may simply not fit into your kitchen.
Height (max)
The height of the entire hood structure is from the lower edge to the upper part of the body (the point of connection of the external air duct). For hoods with an adjustable design that allows you to change the height of the case, the maximum height is the size of the device in the unfolded state; in the case of non-adjustable hoods, this means a correspondingly constant overall height. When choosing a hood in height, it is worth proceeding from two points:
1. The optimal height of the air intake above the hob is 60-80 cm. This height allows the hood to capture kitchen fumes effectively and, at the same time, gives enough space to work with the hob.
2. Between the hood body and the ceiling, a clearance is required for connecting an external air duct.
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